UT's Books! I'm Out of Things to Read! Why Are There So Few UT Books?! Ut的书！书荒了！为什么ut的书这么少？！

1. 1 穿 Transmigrated Into Horror 穿越成horror Gray Baiye灰百叶Two Male Leads418k WordsCompleted [System + sans + Undertale derivative] The story of an ordinary transmigrator. Pairing: murder × horror, no fixed roles 806Reads9.2Score104Shelves

   Reader note

   1. Teacher Hui Baiye is the real god (Huimen) 2. Cocoa

2. 2 你 Hello, My Name Is Ink! 你好，我叫ink！ Took Off, Wuhu!起飞了芜湖Anime Fanfiction261k WordsOngoing [Undertale AU spin-off + no System + no CP + heartless little villain + lots of original lore + chaotic neutral] Simply put, this is a travelogue about the protagonist after being reborn. He always puts himself first, roaming far and wide in pursuit of his ideals. At first, he works as a hired hand for the heroes; later, he becomes the fall guy for the villains. A certain little dreamer comments, “Although our differences in ideals forced us to part ways, he will always be my friend.” A certain 977Reads8.1Score134Shelves
3. 3 k Killer Doesn't Want to Move killer不想动 Gray Baiye灰百叶Anime Fanfiction501k WordsCompleted [Undertale AU fanfiction + No romance + Dual protagonists + Dual personalities + No System] A crossover with my previous book, Transmigrated as Horror, set in the same world. Also known as I Became Killer's Other Personality. A soul from another world merges with a soul in pain. Sharing their memories allows them to trust each other. Along this long and painful road, will they find redemption, or fall into the abyss... “I long for peace, but fate always pushes me toward a different path.” “P 1.3kReads8.9Score128Shelves
4. 4 自 My Custom Sans Travels Through the Myriad Worlds 自设sans的诸天旅行 GenoAnime Fanfiction685k WordsCompleted [The Myriad Worlds + National Fate + Sans] About my original character, who has multiple personalities and wanders around the Myriad Worlds. (Note: Updates every Tuesday, Friday, Saturday, and Sunday.) Most of Sans’s characterization is based on canon, fanon, and my own ideas. (Any similarities are purely coincidental.) 215Reads7.2Score—Shelves

   Reader note

   I seriously recommend the second book (seriously). And I also seriously recommend my own book, *On the Survival Journey of a Self-Determined AU* (seriously).

5. 5 成 Becoming Error 成为error Zhiye Kalas Hali Si治也卡拉斯哈里斯Anime Fanfiction310k WordsOngoing An Undertale AU fanfic, mostly based on my own headcanons, not canon. About a certain skeleton who decides to become a destroyer. Due to circumstances beyond my control, an official pairing was added later. It doesn't appear in the main story, only in the extras. But after signing the contract, I couldn't change the tags, ugh. Everything the protagonist does comes from his own heart. Whether good or evil, it's his own choice. No pairings in the main story. [The protagonist doesn't consider hims 2kReads8.7Score114Shelves

   Reader note

   Both are pretty good... I recommend reading the first one.

6. 6 国 National Fate: I Transmigrated as Sans, with Zhongli as My Teammate 国运：穿越sans，队友钟离 Magician of the Rainbow Bridge七彩虹桥的魔术人Anime Fanfiction329k WordsOngoing [Undertale / UT Fan Work] [The national fortunes are not dominated by one country] I know the title's a bit of a mixed bag... But the story itself is even more complicated ( ) [The writing in the first few chapters isn't very polished, so they may not be the best read, but please stick with it for a few more chapters!] A veteran UT player with a complicated background transmigrates, only to find himself caught up in a game of national fortunes? Complete the game across ten worlds, and you can re 2.3kReads9.4Score179Shelves

   Reader note

   Meow meow meow~ They're all pretty!

7. 7 e The Wonderful Journey of Error error的奇妙旅程 Han Linyue寒临月Anime Fanfiction361k WordsOngoing [Undertale AU fanfic + My take on Error as the protagonist + Not hot-tempered or quick to anger + Error based mainly on canon, with my own additions + No Romance for Error in the main story + Unorthodox National Destiny + Watch-Along Reveals the Truth + Multiverse] The National Destiny game is just a starting point, and most of the on-screen comments are friendly. Because of an unknown program, Error arrives in Aftertale to take part in a National Destiny game. Although the creator’s will means 432Reads8.7Score101Shelves
8. 8 国 National Fate: Horror Only Wants the Peace Route 国运：horror只想要和平线 Naming Is Too Hard, Forget It取名太难不取算了Anime Fanfiction75k WordsOngoing Horror had finally found a peaceful ending, only to have a mysterious creator steal their memories and throw them into the National Destiny game. [A few things to know before reading: This is my first time writing a novel. It’s purely for fun. Any AUs are my own versions. It’s especially chaotic. The National Destiny game includes identity reveals, memory loss, watching scenes, and summoning people. The writing is at a pure elementary-school level. Updates are whenever I feel like it.] 9Reads—Score—Shelves
9. 9 N Nightmare Is Busy Again Today Nightmare今天也在忙碌 Terrible Artist or Terrible Writer画渣渣or文笔渣渣Anime Fanfiction518k WordsOngoing Updates are irregular for now, with each update being at least 1,000 words. Also, the author is terrible at coming up with names, so the chapters won't have titles. (All right, really, I just want to be lazy.) Please don't blame me if my writing isn't very good. (I did warn you in the title, after all.) The characters might be OOC at times. I'll try to stick as close to the original characterization as I can, but I'm not their mom, so they might not always be completely in character. Also, if so 88Reads—Score—Shelves
10. 10 u UT: Deviation ut：偏差 Li Xiaomi黎晓蜜Anime Fanfiction102k WordsOngoing [Undertale derivative + heavily altered setting + OOC + Nightmare gets put through the wringer + no romance in the main story, I love platonic pairings!] If everything deviated from how it was supposed to be, if everything changed, I think I’d say that we are not redeemed, we are not forgiven, and we don’t need the judgment of bystanders, because we are simply ourselves. (This blurb is a mess, don’t mind it.) This story came from the author’s frustration with the original Dreamtale setting and 256Reads—Score—Shelves
11. 11 F Feather’s Half-Alive Feather的半死不活 Li Xiaomi黎晓蜜Anime Fanfiction135k WordsCompleted [Undertale spinoff + my own OCs + Evilbone group + writing whatever] First off, this book is purely for fun, and I can't promise regular updates. It's lighthearted, has no romance, though there may be platonic relationships. The story moves along pretty quickly. I'm not good at writing introductions, so please read the book. * This book has a mountain of headcanons. * Nightmare in this book will have fewer elements from the official canon (the canon is trash, so I'm not using it. I just like evi 132Reads—Score—Shelves
12. 12 国 National Fate: But Xiaohua 国运：但是小花 User30021124用户30021124Anime Fanfiction182k WordsCompleted Undertale, UT, national destiny, no female lead, no CP, Flowey, AU, revealing the past. No transmigration, no System. A fanwork based on the original, set on a special timeline. As you can see, the protagonist of this story is Flowey, or rather, Asriel. Flowey's characterization will stick as closely to the original as possible. There will be AU cameos. I'll try to follow the original settings for the AUs, but there are too many of them, so anything that differs from canon can be treated as my o 372Reads6.9Score—Shelves
13. 13 原 Genshin Impact: Sans's Bizarre Adventure 原神，sans的奇妙冒险 An Ordinary, Anxious Person平凡又焦虑的人Anime Fanfiction532k WordsCompleted [No female lead + not invincible] After countless cycles of peace and slaughter… Sans: Okay, this is really “skull.” I should've known you'd be the variable that showed up in the timeline. G: Countless resets have made this timeline abnormal. You don't belong here anymore. Go out and broaden your horizons. Sans: Okay. (shrugs) I hope wherever I end up has ketchup and hot dogs. (The author is just writing this in their spare time, so there isn't a draft or anything. I write whenever inspirati 364Reads8.4Score105Shelves
14. 14 禁 Exploring the Forbidden Zone: My Teammate Is Dupi 禁地探秘之我的队友是杜皮 The Five Elements of Heaven's Way天道五行Urban175k WordsCompleted (There aren't many scenes set in the forbidden lands; most of the story takes place in other worlds. Unfortunately, I can't change the title, so it'll have to stay this way.) [Potential heroine]+ [The Role-Playing System barely features]+ [Chat Group] Here, you'll see Xiao Ming steal someone else's account right in front of Oma Zi-O, Zero and Tartarus shake hands and make peace, becoming good friends, Dupi turn into a planet-destroying big shot, and Yugi Muto sweep through worlds with Exodia. Th 133Reads7.0Score—Shelves
15. 15 御 Beast Taming: Together with My Bone Brothers 御兽：和骨兄弟一起 User30021124用户30021124Anime Fanfiction388k WordsCompleted [UT + Sans + Papyrus + All UT Characters + AU + Legally Cat-Eared Shota + Beast Taming + Everyday Life + All Original Undertale Characters] Mostly sweet, with a little angst. A complicated mix. No female lead doesn’t mean no CP, right? The CP in this book is Lin He and Chara (“split self”). This book is mostly everyday life, though things get crazy sometimes. Lin He was an ordinary high school student. While playing an Undertale fan game, his keyboard started malfunctioning, his blood pres 92Reads—Score—Shelves
16. 16 听 Listen Up, You Fools 听着，蠢货们 Li Xiaomi黎晓蜜Anime Fanfiction38k WordsCompleted [Undertale Fanfiction + Bad Guys + Nightmare + A Little Mind Reading] How should I put this? It's a pretty bad story, very mundane and meandering. I wanted to read it myself, so I wrote it, and since I wrote it, I published it. If you don't like it, please go easy on me when you criticize it. (This is blatant mistreatment of Nightmare, so hardcore fans, run! And I'm not going to address the protagonist's name.) 114Reads—Score—Shelves
17. 17 传 Undertale: The Story of an ULB 传说之下：一只ulb的故事 Leader of the Way of Great Peace太平道道主Anime Fanfiction150k WordsCompleted Give him one molecule of oxygen and he'll dance until the world ends. He is the fearsome ulb. General of the Army Douglas MacArthur, speaking from far away on the surface, once said, “If God told me to defeat ulb, then God himself would have to join the battle with a real sword.” Asgore, king of the Underground, also said, “From the moment I appointed ulb as judge, I knew I would never see another slaughterer again.” Frisk, humanity's ambassador for peace, said, “After ulb's trial, I never commi 208Reads7.1Score—Shelves
18. 18 国 National Fate: Sans Has Something to Say 国运：sans表示有话要说 Just Keep Smiling for Now现在只要微笑就好Modern Romance50k WordsCompleted “I” was a typical 21st-century college student, until a truck suddenly came barreling down the road and sent “me” to another world. In short, “I” became a soul and was stuffed by some scientist whose surname started with G into the soul of a little skeleton whose surname started with S. But “I” couldn’t move or speak. Then, after a few well-known events, the monsters came to the surface. At last, “I” could speak! Though only to Sans. So every day, “I” rambled on inside Sans’s head. Sans: ... Thi 156Reads—Score—Shelves
19. 19 暮 Twilightale 暮光传说twilightale Dream of the Future未来之梦Anime Fanfiction265k WordsCompleted Keywords: Undertale, Undertale, AU, Sans An unconventional Chinese-made AU This story may have no beginning, and may never have an ending. What kind of spectacular tale will unfold on the stage of this multiverse? The blurb doesn't do it justice, so I recommend reading the story itself. This is an unconventional Chinese-made AU. I've left the fandom, and I'm only writing this book to fill in the gaps. I don't want to keep drawing, so I've switched to writing a novel instead. I'm an average writ 205Reads8.6Score—Shelves
20. 20 g Ghost Wants a Peaceful Route ghost想要和平线 Unconventional Expectations非常规期待Anime Fanfiction517k WordsOngoing [Undertale fanwork] [Some original headcanons] [No pairing in the main story] The main plot follows Killer!Sans's official comic, and has currently reached the multiverse. Hi, I'm Ghost. I'm a ghost~ Right now, I have absolutely no idea what strange world I've fallen into. But that's okay! I can't remember anything anyway. I don't know whether forgetting is a good thing or a bad thing. I don't know. I sincerely hope it won't be long. So, Sans, go back to sleep for a little while. It'll be over s 632Reads8.4Score112Shelves
21. 21 梦 After the Dream: Ream 梦想之后—ream ReamAnime Fanfiction388k WordsOngoing [Signed] After Dream *Dream transmigrated... I was just playing with a seed, and somehow transmigrated. True peace and all that. Faith, Nightmare, a System cheat. A Minecraft streamer’s comeback journey! “Why don’t you turn off your cheats if you’re so good?” “I use cheats because I can.” Without cheats, this loser Dreamer is only a bottom-tier fighter. Why is the plot progressing so slowly! This cheat makes it feel like an invincible-protagonist story! Stop padding things out and get the pl 67Reads6.5Score114Shelves
22. 22 传EN Undertale: A Bad Sans's Journey Through the Multiverse 传说之下：邪骨旅行多元宇宙 oirAnime Fanfiction236k WordsCompleted [Anthropomorphism + multiverse + time-and-space redemption + very little OOC] After escaping the octopus's control, Killer Sans decides to travel across the multiverse, making friends in different worlds and saving other timelines with fates like his own. Along the way, he meets the experienced Murder, the mysterious ulb, and even the eerie, terrifying Sanstrosity. - Killer Sans: That's right, I'm talking to you! Want to be my friend and help me save the universe from disaster? Then type 1! Murd 253Reads8.4Score—Shelves
23. 23 网 Online Game: Your Daddy Sans Is Here! 网游：你杉斯大爹来咯！ Shan Si Hou Xing杉斯后行Sports228k WordsOngoing [Female Lead] [No CP] [Sans as a genderbent girl] [Game] Lin Luoxue is both unlucky and lucky. In the world she transmigrated to, she made it into the top ten worldwide in a game called [Seventh Day], only to unexpectedly transmigrate into the game a second time. She even became Sans from the game [Undertale], which she played in her previous, previous life! Lin Luoxue looked at her own fair hands and let out a piercing shriek: “Why am I a girl?!” After seeing the despair of the white-haired gi 739Reads—Score103Shelves

    Reader note

    Uh... I have many more on my bookshelf, but the quality is somewhat... Uneven? And some are hard to find...

24. 24 传 Undertale: Sans in the Apocalypse 传说之下：末世中的Sans ClassicSci-Fi & Apocalypse721k WordsCompleted Told mainly from Sans's perspective. Zombie apocalypse. No overwhelming combat strength [probably]. A System is present. Not a mindless power fantasy, so readers will need to use their heads. Please check the warnings before reading. In the False Pacifist route, led by Frisk, the monsters emerge from the barrier and integrate into human society in almost the best way possible. “Monsters” become a special class of citizens in the country. But happiness is always fragile, and after this strange pl 269Reads8.7Score—Shelves
25. 25 小 My Little Pony: Sans’s Wonderful Adventure 小马宝莉：sans的奇妙冒险 Friendship Principal Starlight友谊校长星光Anime Fanfiction152k WordsCompleted [Undertale] [My Little Pony] [Almost Invincible] [Features fan-made AU Sans] [Cameos] Sans transmigrates to Equestria?! Sans: “I'm not good at much. I'm just a lazy skeleton.” Sans: “What? The Changelings kidnapped the Mane Six? Discord! March with me!” Sans: “Huh? A worm virus? Doctor, lend me your TARDIS!” Sans: “The Dark Mane Six? I have to stop them to keep the ponies safe!” Error, Nightmare, whatever! Purify them all! Queen Chrysalis? We'll teach her to understand love and learn the magic o 102Reads—Score—Shelves
26. 26 传 Undertale: A Look Back at the Journey from Dust 传说之下：盘点从尘埃开始 Lazybones Sans懒骨头杉斯Anime Fanfiction245k WordsOngoing Undertale: Watch Party A huge black screen, like a movie theater screen, suddenly appeared in the Undertale universe. As the many AUs stirred and went on alert, the screen… lit up! It showcased unusual timelines caused by the original game’s Genocide Route. One by one, these timelines of extraordinary events appeared: Dust! Disbelief! Killer! The Unseen Ending… and many more. After the first showcase ended, people discussed what they had seen. Then the second showcase began! This time, it featur 429Reads—Score108Shelves

    Reader note

    These books are all very good.

27. 27 u UT: Boss Got Tricked into the National Farmland ut：老大被骗进国远啦 Underground Dweller with Terrible Prose文笔烂烂的地底人Anime Fanfiction246k WordsOngoing (This story takes place after the first two books have ended! Mom found my main account, so I had to switch to an alt ˃̣̣̥⌓˂̣̣̥) The Dark Night Emperor only wanted to find somewhere to relax, but after lazing around for three whole months, the little Dreamer couldn't take it anymore. No matter where the Emperor went (or, to be precise, lay down), the Dreamer could always find him and try to make him a little more diligent. So the Emperor simply hid in the original timeline, never expecting his w 248Reads—Score—Shelves
28. 28 武 Martial Souls: The Dust-Covered Assassin 武魂：布满尘埃的杀手 The Breeze Is So Sleepy清风好困Anime Fanfiction590k WordsOngoing A note before you read: this is a crossover fanfiction between Douluo and Undertale. Chen Yuyan, a model young man from the 21st century, was playing an Undertale spin-off at home. But after accidentally insulting Tang the God King, he was punished and unexpectedly wound up in the world of Douluo. At first, all he wanted was to see if he could get a divine position. But everything changed when he witnessed the family members he had lived with for years die at Tang Hao's hands in an act of reveng 337Reads—Score101Shelves
29. 29 原 Genshin Impact: The Skeleton from Amphoreus 原神：来自翁法罗斯的骷髅 Too Lazy to Move Fungus懒得动真菌Sports589k WordsCompleted [Players, gacha pool, mainly Genshin Impact] After finally recreating Amphoreus, I somehow ended up on a continent called Teyvat. As the saying goes, since I’m already here, I might as well settle down. Player: So that’s why you’ve been to all seven nations? Sans: I’ve got some stir-fried snow here. It won’t cost 9,999, or even 999, just 99,999 Mora. Player: Here you go. Sans: Sorry, but I don’t have any stir-fried snow. (Shrugs) [The synopsis is beyond my abilities.] 192Reads—Score101Shelves
30. 30 传 Undertale: The Slaughter Cycle 传说之下：杀戮轮回 True Lord of the Wonderful Way妙道真君Anime Fanfiction693k WordsOngoing (AU setting changed.) After staying up all night and suddenly dying, Lin Fan transmigrates into the Underfell fan game he designed, Underfell: Kill or Be Killed. Facing the mad monsters he created, Lin Fan's only way out is to follow the game's route and leave the Underground... 55Reads—Score—Shelves
31. 31 穿 Transmigrating to Another World, My Family Has a Shirt 穿越异世界家里出衫 Yimei Is Updating依梅在更新了Anime Fanfiction554k WordsCompleted Sorry, I’ve dropped this book... If you like Ken x Old Finn, give it a look. For some unknown reason, Amei transmigrated to another world. Just as a System finally appeared and gave him the ability to decide who to become, it disappeared. From then on, he became C. One day, while school was on break, he tried using an ability he had never used before. After that, there was an extra skeleton in the house, and the skeletons just kept piling up... 98Reads—Score—Shelves
32. 32 l Lonelysans’s Bocchi the Rock! lonelysans的孤独摇滚 Shan Who Loves Watching Anime一只喜欢看动漫的衫Anime Fanfiction166k WordsCompleted [Original Sans character + Bocchi the Rock! + The Weird] (Reposted using a different account) Lonely Sans arrives in the world of Bocchi the Rock! and discovers that something is off. This story was born out of my love for Gotoh Hitori, and Lonely Sans is my original character. The plot is all based on daydreams I have during class. Lots of OOC. Not good at writing. Not recommended. I drew the cover myself. 21Reads—Score—Shelves
33. 33 暮 The Fall of Twilight: Beneath the Aurora 暮色之陨：极光之下 Shenggezk笙歌zkAnime Fanfiction248k WordsOngoing Maybe... if the war had never broken out back then, we would have had better lives. When the aurora blankets the world and monsters endure their days in pain, who will step forward to change everything? No... It's all in vain. When the last bit of warmth vanishes from the midst of malice, revenge can no longer be held back. With golden light by their side, is it a blessing or an ill omen? And behind the or 105Reads—Score—Shelves
34. 34 传 Undertale: Am I Playing Sans? 传说之下：我扮演sans了？ The Sourest Fish with Pickled Cabbage最酸的酸菜鱼Anime Fanfiction775k WordsCompleted (Transmigration + OOC + chat group) Wait, how did I become Sans from Undertale? The System floating in the air answers all his questions. And from the very beginning of his transmigration, he’s thrown into a hell-level challenge. After completing it, he must travel to different parallel worlds under Gaster and the System’s supervision. (Worlds completed so far: Original, Horror, Dust, Swap, KTT, and Insanity) 807Reads7.3Score103Shelves
35. 35 传 Undertale: Dust's Search for His Bro 传说之下Dust劳弟的寻哥记 UT AddictUT重度依赖Anime Fanfiction279k WordsOngoing [Undertale + OC + multiverse] Pure fanfiction. Where it differs from the original, please treat it as my own interpretation. Apologies for any out-of-character moments. Mostly slice-of-life and battles, with pairings and crossovers. The characters may not be very well developed in this first book. 309Reads—Score—Shelves
36. 36 u UT: The Final Bone Setter ut：最后的正骨 ulb Enthusiastulb爱好者Anime Fanfiction1.0M WordsOngoing (Recommended: Start reading from Volume 5. Skip Volume 3. Volumes 2 and 4 are optional. Volumes 1 and 5 are must-reads!) (Undertale) (P fans, beware!) (Female lead: UKB after Chapter 254, genderbent) After waking up, I transmigrated into the skeleton Sans. That's right, ULB! Knowing the script for the Genocide Route, I set out to stop those damn humans... ULB completed two perfect genocides through CS! ULB: I'm not that idiot DEFG! There's no way I can still lose! After getting the humans to tak 223Reads6.7Score—Shelves
37. 37 传 Undertale: The Human Who Shouldn’t Exist 传说之下【不应存在的人类】 An Ze Qi Meng安泽讫梦Anime Fanfiction220k WordsOngoing When Felix wakes from the darkness, he finds himself in a village where humans live. He has forgotten everything. His memories of the past seem to have been deliberately erased, and all he remembers is that dream of “Error.” By “coincidence and good fortune,” someone takes him in. But this becomes the beginning of his fate... Missing people in old newspapers... two prophecies... a death foretold... In the end, the guilt brought on by the “outcome” winds around his heart like vines, leaving hi 49Reads—Score—Shelves
38. 38 我 I Am Chara, and I'm Not 我是chara，也不是 Nie Xiaocaomei聂小草莓Anime Fanfiction947k WordsCompleted Special events, original worldbuilding, a pairing, very sweet with a touch of angst (the protagonist just dies a few times, that’s all). Also known as: Wayward Heart Once this drug takes root in a person’s heart, it is “impossible” to undo. No one can quit. The prophecy begins: a new soul will save the world. This is simply a moving story about how, amid endless despair and chaos, two lonely souls find each other, heal each other, and ultimately discover that “love” is real, transcending both co 251Reads—Score—Shelves
39. 39 u UT Fanfiction: Beneath the Dust ut同人：尘封之下 Villainous Player罪恶玩家Anime Fanfiction456k WordsCompleted [Standalone AU] [A little multiverse] [Plot-focused] [Follows the original] When this world becomes more beautiful than before, and threats from far away and close at hand turn to dust, I'm safe. But why can't I feel happy at all?, Sans "This guy isn't quite like the one in my memories, is he?" Watching the human beside me keep their head down and say nothing, stuffing their own pie into their mouth, I can't help wondering: is this really the same maniac who killed me hundreds of times in my dre 209Reads—Score105Shelves

    Reader note

    These are all good; I recommend 1, 2, 5, 7, and 10.

40. 40 传 Undertale: Blossoms That Never Fall 传说之下：永不飘落的繁花 A Wretched Human Licking Sugar off a Knife's Edge刀尖舔糖的屑人类Eastern Fantasy489k WordsOngoing (No CP + SF + HE + Upholding RightE = ?) In 201x, at Mount Ebott, Crow heard that no humans who went there had ever returned. So, with a missing-person flyer in hand and a bow on her back, she went to investigate. She saw Frisk trip over a vine and fall into a deep pit, so Crow jumped in after her. After freeing the Underground, Crow thought she had reached the end. But with Flowey’s prompting, she found Gaster and struck a deal with him… She would go uphold justice and grow stronger, while Gast 24Reads—Score—Shelves
41. 41 国 National Fate: Sans Can Dominate Even While Frail 国运：sans即使病弱也能横推 TascrilAnime Fanfiction192k WordsOngoing Sans takes part in the National Destiny game. No transmigration plot, but there will be AUs. I’ll do my best to capture Sans’s personality and avoid making him OOC. Sans is the strongest fighter in another world. A fragile mage with infinite magic. No System, no CP, survival game. There will be viewing-room segments where secret identities are exposed. I started writing this because I wanted to write a power fantasy. I changed the cover. I drew it myself. I didn’t have time to change it before b 616Reads8.1Score100Shelves

    Reader note

    Here is all my assets.

42. 42 国 National Fate: Fell's Bizarre Adventure 国运：Fell的奇妙冒险 1912一九一二Mystery160k WordsOngoing After enjoying ten years in a peaceful timeline, things still went wrong for Fell. First, something claiming to be a National Destiny System suddenly appeared. Then Fell was chosen as a contestant. Fell: hdxjirfhudv 251Reads7.5Score—Shelves
43. 43 U UT: I Joined the Bad Time Trio to Fight a Green-Tea Bitch?! UT：我上邪骨团打绿茶？！ Gui Chen归灬尘Anime Fanfiction127k WordsOngoing [Undertale] [UT] [Undertale] [Bad Sans Crew] The female lead has no romance. Side pairings include ErrorInk, MustardKetchup, NightmareKiller, and MurderHorror. The female lead comes from a derivative AU of the Blossoms Fade AU. She isn’t kind or saintly, and the backstory has been changed somewhat. The story is mainly about the female lead being selected by the System and joining the Bad Sans Crew. She half-heartedly helps deal with a suspicious little green tea who seems to have the crew’s skel 171Reads6.8Score—Shelves
44. 44 传 Undertale: Soul Swap 传说之下，灵魂转换 Phantom Star Mage诡影星师Anime Fanfiction229k WordsCompleted Also known as: Spark Legend [Undertale] [Lots of original worldbuilding] [Characters from multiple AUs appear] [Female lead: Betty] [True Hard Mode] Red, orange, yellow, green, blue, indigo, violet, gray, white, and black: ten souls in all. Oi, kid, have you ever seen a human who can switch between different soul traits? Today, the beast in human clothing Bai Ming has arrived! The barrier isn't the monsters' greatest seal. The true seal is a curse that resets whenever monsters reach the surface. 50Reads—Score—Shelves
45. 45 传 Undertale: The Hardest Perfect Ending to Achieve 传说之下：最难达成的完美结局 Jia Ren Lu Wei Yi甲人路位一Sports208k WordsCompleted The story follows the plot of the game Undertale. The protagonist is a transmigrator who knows nothing about the game’s story, and does his best to achieve the “perfect ending” as he feels his way forward! How exactly do you trigger the perfect ending? How does a complete beginner get into Undertale? This book gradually immerses readers in the game’s story through the protagonist’s perspective, bringing its battles, puzzles, easter eggs, and more to life. The story moves at a slow pace, so pleas 204Reads8.0Score—Shelves
46. 46 传 The Unsolvable Undertale 传说之下无解 Teasing Ink Lord撩墨君Anime Fanfiction150k WordsCompleted An unsolvable problem, yet people keep trying to find an answer, even though they don't want it solved. Some are always searching for a path. Along the way, some have forgotten why they set out on it, but there will always be others who keep following it. A note from the author: This book contains a lot of original and personal headcanon. If you're not good at reasoning things out, I recommend not reading it. If you insist, prepare an antidote and something to help you cope, because readers who 20Reads—Score—Shelves
47. 47 U Undergoodluck LuckyFlowerAnime Fanfiction148k WordsCompleted [Undertale fanfiction] [Amateur writing (._.)] [No System] [The main cast are all native AU characters] [Any resemblance is purely coincidental] A human child named Clover falls into the Underground. Lucky Clover survives the fall and begins a strange and wonderful adventure through this bizarre place... After exploring the Underground comes a journey through the multiverse. Our AU has no ending!! Main cast: my original character Luck Sans, my OC Clover, and Dust! 65Reads—Score—Shelves
48. 48 慈EN Cihang City 慈航市 Mountain-Patrolling Lord God巡山主神Mystery1.3M WordsOngoing At Cihang's grand arena, don't show up without a cheat. Chen Feng transmigrated to another world and discovered that the bosses here were unbelievably sneaky. “Let's go level up in the newbie village first.” “Ha! Got you, transmigrator.” “I'll be reborn and buy a lottery ticket.” “Ha! Got you, regressor.” “Fine, if you're going to play dirty, I don't need to pretend to be a gentleman either.” Chen Feng discovered that every time he died, he could refresh and get a new System. A System's power ha 1.2MReads9.2Score132.8kShelves

    Reader note

    Niu Niu Niu Niu Niu Niu Niu

49. 49 传 Undertale: The Afterglow of Golden Radiance 传说之下【耀金之余辉】 Lord of the Mastery掌握者之主Anime Fanfiction35k WordsCompleted You’re playing a game when you transmigrate into a Sans, and your mission is to save the multiverse...? There’s a System, no heroine for now, a Sanb chat group, and the protagonist is almost invincible. Current progress: UTGA (this world), UT, Horrortale, Undertale_Insanity 4Reads—Score—Shelves

    Reader note

    The first two books are really good, and the last one is one I wrote, you can give it a try.

50. 50 U UT: Daily Life After Transmigrating into an AU UT：穿越AU的日常 Bing Bing Binggao冰冰冰糕Anime Fanfiction228k WordsOngoing The story of an ordinary person (really) who enters Undertale, transmigrates through various AUs, and eventually makes it home. Li Qinqian takes the alias Ling Bing and begins searching for a way home across different worlds. Her arrival stems from revenge. Her departure stems from reconciliation. Her final journey home is accompanied by flowers as well as thorns. Less serious introduction: The character my cousin wrote is out for revenge against me. What should I do? Help, I'm in a hurry!!! Som 41Reads—Score—Shelves

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