I Want UT!! Undertale!!! 我要UT！！传说之下！！！

1. 1 崩 Honkai: Star Rail: A UKB 崩铁：一只UKB A Skeleton一只骷髅Anime Fanfiction158k WordsCompleted A young man who transmigrated by accident arrives in the world of Undertale and becomes its most popular character, Sans. While fighting against humanity, he gains some unusual abilities. But to his surprise, while traveling through other AUs, he finds himself in a world that feels both familiar and strange. Sans begins a new chapter in this world. 253Reads—Score—Shelves

   Reader note

   Personally, I think it's good to read. The first one is not just an ordinary Kobe, it's a real Kobe.

2. 2 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 513Reads—Score101Shelves
3. 3 原 Genshin Impact: ULBSans Powers from the Start 原神：开局ulbsans能力 Threefold Memories of Days Gone By三重往日时光Anime Fanfiction339k WordsCompleted (There are angst scenes, there are angst scenes, there are angst scenes. Important things must be said three times, though the angst is mild.) Liu Yang was an ordinary high school student on Blue Star. After an accident, he transmigrated to Teyvat and gained a System. From the start, he received the abilities of ULB Sans and became one of the many Archons. Realizing that the Archon War was about to break out, he joined Morax and others in founding the Guili Assembly. But his arrival caused rippl 371Reads7.3Score103Shelves
4. 4 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 744Reads8.7Score101Shelves
5. 5 化 As UKB: Seriously, Why Is the Multi-World Prosecutor Still Chasing Me? 化身UKB：不是，多审还在追我 Xiao Yuan-chan小源酱Anime Fanfiction288k WordsOngoing "No System, not invincible, few tearjerkers (because the author isn't very good at writing them either)" AU title: [Undertale: Karma Fire Samsara] (Suitable for casual play, not too exhausting.) Li Yuan stayed up all night grinding CTT, then died suddenly along with his computer. When he woke up, he had become Sans. But the player here didn't seem like a good sort. After twelve consecutive failures, the timeline went a little haywire on the thirteenth attempt. A secret beneath the cliff. A stran 469Reads6.7Score—Shelves
6. 6 传 Undertale: It All Begins with Transmigration 传说之下：从一场穿越开始 The Sourest Fish with Pickled Cabbage最酸的酸菜鱼Anime Fanfiction476k WordsOngoing For reasons unknown, a human arrives in the game Undertale on a soul level. The compatibility between their identities and souls leaves them barely able to tell who they really are. Are they Sans, a human, or somehow both? Here, they seek the answer. And when they finally find it, they will shatter the chains of fate and set out into the boundless cosmos to create a story of their own. (A large number of characters will appear in this book, and many redesigns have already been planned: the UKB r 886Reads—Score108Shelves

   Reader note

   I also wrote a book myself, you can read it.

7. 7 成 Becoming Error 成为error Zhiye Kalas Hali Si治也卡拉斯哈里斯Anime Fanfiction306k 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 1.7kReads8.7Score101Shelves

   Reader note

   I don't know, it should be ok

8. 8 尘 Legends of Dust: Pale Divine Miracle 尘埃传说：苍白神迹 The Eternal Sufferer of the Roman Empire古罗马帝国的患天常Anime Fanfiction561k WordsOngoing After countless massacres, Sans could no longer bear to watch his companions die before his eyes, so he began resorting to extreme measures. Unfortunately, none of them ever worked. This despairing situation went on for who knew how long. Just as he thought it would continue forever… An unimaginably great being opened its eyes and looked upon this world. (This is the author’s second book. The quality may have improved a little, but please don’t get your hopes up too much, as the author’s writing 266Reads—Score—Shelves
9. 9 恐 A Legend of Fear, Karma, and Retribution 恐惧传说因果业报 The Eternal Sufferer of the Roman Empire古罗马帝国的患天常Anime Fanfiction725k WordsOngoing A pale eye… a game for amusement, and a gray door behind a waterfall. As He creates the protagonist of this story… Horror, naturally… his story will have nothing to do with “peace.” (I’m a new author, so please bear with me.) 248Reads—Score—Shelves
10. 10 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 1.6kReads8.9Score137Shelves
11. 11 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 278Reads—Score—Shelves
12. 12 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 Fanfiction324k 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 1.2kReads9.4Score111Shelves
13. 13 g Ghost Wants a Peaceful Route ghost想要和平线 Unconventional Expectations非常规期待Anime Fanfiction514k 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 1kReads8.4Score129Shelves
14. 14 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) 822Reads7.3Score114Shelves
15. 15 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.) 218Reads7.2Score—Shelves
16. 16 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 930Reads9.2Score116Shelves
17. 17 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 112Reads—Score—Shelves
18. 18 绝 Zenless Zone Zero: Where Did This Custard Tart Come From? 绝区零：哪来的酥皮蛋挞？ Why Break the Ultra Key为什么折断奥特钥匙Anime Fanfiction103k WordsOngoing I wake up and find myself in Zenless Zone Zero? But I'm a crispy tart. Sans: “Bro, where the heck did you bring me? Is this still the Underground?” Ethereals: “Don't come any closer!” 491Reads—Score—Shelves
19. 19 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 225Reads7.1Score—Shelves
20. 20 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 692Reads—Score108Shelves
21. 21 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 228Reads8.6Score—Shelves
22. 22 传 Undertale: A Journey of My Own 传说之下：属于我的一场旅途 Looking into the Distance遥望至Anime Fanfiction940k WordsOngoing What is set in stone cannot be changed. All we can do is accept it. After dying suddenly in an accident in his previous life, Heripons transmigrates into the world of the game Undertale! But as the price, he loses some of his memories. Guided deliberately by Frisk, the game's original protagonist, he manages to reach the Pacifist ending and recover some of the memories he lost. He thought he could only go on living in someone else's body and appearance, but an encounter planned long in ad 1.3kReads8.7Score172Shelves

    Reader note

    There are really not many UT books that rely on hard skills to score points, and the score is over 7 without any push [face covering]

23. 23 我 Minecraft: Starting as an Undertale Judge 我的世界：从传说之下审判官开始 Wandering Hacker浪客HackerAnime Fanfiction159k WordsCompleted "System + Transmigration + Goofy Comedy" No characters getting dumbed down Yu Chen was a high school student when he suddenly transmigrated into Minecraft and became a skeleton. Little did he know that the world had already collapsed and the Outer Gods were stirring. How will he face the invasion? 66Reads—Score—Shelves

    Reader note

    Under the legend, as you wish [note]

24. 24 穿 I Transmigrated to Genshin Impact, and I’m a Skeleton? 穿越原神之我是个骨头？ Lazy Ghost Blows Out the Lamp懒鬼吹灯Anime Fanfiction155k WordsCompleted Lan Gu transmigrated into the world of Genshin Impact and became a god, but his brother was gone, so he set out to save him. P.S. The protagonist's abilities are roughly like Sans's. No System. A female lead may or may not appear. 74Reads7.3Score—Shelves
25. 25 完 Oh No! Sans Has Become a Teacher! 完辣！sans当上老师辣！ Just a Judge Who Plays with Ink玩墨水的审判官罢了Urban144k WordsOngoing (For fans of transmigration, Systems, and underground dwellers.) After transmigrating into an age of supernatural powers, I become a catgirl and open a school for people with supernatural abilities. But the teachers at the school... are actually Sans. He looks kind of terrifying... People who awaken supernatural powers can become ability users. Their ranks are E, D, C, B, A, S, SS, and SSS. Their stages are Common, Fine, Excellent, Epic, Legendary, Collector's Edition, Radiant, and Mythic, with 7Reads—Score—Shelves
26. 26 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 398Reads8.4Score105Shelves
27. 27 星 Honkai: Star Rail: The Judge from UT 星穹铁道：源自UT的审判者 Meng Xingcheng梦星澄Anime Fanfiction135k WordsCompleted [Honkai: Star Rail]+ [UT]+ [Invincible]+ [Single Female Lead]+ [Single Protagonist] Female lead: - Abilities: Boss-level Sans soul powers + the souls of the seven strongest pioneers + administrator/hacker - Role: Judge (not necessarily a fighter) Synopsis: Original AU: Star Domain Tale An independent world created by seven pioneers with the most powerful souls. Years later, the brilliant scientist Gaster’s research into soul power brings her into being, armed with powerful Determination and an e 152Reads—Score—Shelves
28. 28 传 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 304Reads8.4Score—Shelves
29. 29 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 228Reads8.7Score—Shelves
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... 37Reads—Score—Shelves

    Reader note

    There are many, yes

31. 31 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 83Reads—Score—Shelves

    Reader note

    Needless to say, the blinds are huge and very beautiful. I mainly recommend the other two books. The first one is "Ghost Wants Peace". The protagonist is ghost, and the main direction is killer! Sans, it has been updated to the far universe chapter, and the number of chapters is enough to read. The boss's writing is very good, and he stabs me from time to time [face covering] [face covering] [face covering] but most of them are still sweet (because it should be?) I really like Ghost, this cute cow cat, okay (os: I want to watch Ghost Cat...) Another book, "Twilight: Under the Aurora", is a Chinese AU with the protagonist Power. It has an outline and writing style. When I read this book, I supported First's massacre for the first time. [Crazy] [Crazy] [Crazy] There are slightly fewer chapters than the first book but it is enough to read. I have already worked at Nightmare. Well, it is a cute "cloth-bone bird" (os: I also want to see Power wearing a skirt...) At the same time, the two books are also interconnected. I have already met the PG beautifully, saving each other, the big bird protecting the kitten, so happy [laugh][laugh][laugh] In short, I highly recommend it. It's not a loss.

32. 32 你 Hello, My Name Is Ink! 你好，我叫ink！ Took Off, Wuhu!起飞了芜湖Anime Fanfiction253k 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 772Reads8.1Score114Shelves
33. 33 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 173Reads—Score—Shelves

    Reader note

    *You will love that the bookshelf is also available

34. 34 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 Fanfiction201k 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 288Reads—Score—Shelves
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 Fanfiction275k 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. 200Reads—Score—Shelves
36. 36 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 395Reads6.9Score—Shelves
37. 37 传 Undertale: The Collapse of Time 传说之下【时间崩坏】 It’s a Nightmare Either Way反正是噩梦Anime Fanfiction200k WordsCompleted (Guaranteed brainless fun) Just as Sans was about to die, he arrived in a [New. Undertale] and encountered all kinds of fan versions of himself, setting off a series of events. 19Reads—Score—Shelves
38. 38 传 Undertale: A Colorful Illustrated Tale 传说之下：缤纷绘卷 Flying Bitter Tea Seed会飞的苦茶籽Anime Fanfiction200k WordsOngoing The heart of color pulses between ash and faint light, on a land woven with determination and dust, a traveler with a unique “colorful determination” quietly appears. 14Reads—Score—Shelves
39. 39 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 63Reads6.5Score114Shelves
40. 40 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 227Reads—Score105Shelves
41. 41 传 Undertale: I Transmigrated into the Hypocrisy Route from the Start 传说之下：开局穿越伪善线 Wandering Hacker浪客HackerAnime Fanfiction145k WordsOngoing Bai Ye, who had terminal cancer, closed his eyes as he lay dying. When he opened them again, he had transmigrated into Undertale, but something about this world felt wrong... There are elements absent from the original, and events are veering off the original plot. The butterfly's wings beat faster and faster, and Bai Ye, a transmigrator, must risk everything in a desperate fight for the fate of the entire world! “For this world!” 131Reads6.6Score—Shelves
42. 42 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... 78Reads—Score—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 152Reads6.8Score—Shelves
44. 44 日 Being the Brightest Star Every Day 日常做最亮的仔 Ran Benran然本然Anime Fanfiction142k WordsCompleted Also known as My Little Sister Became a Little Bun One Day [Note: UT fanfiction + OOC warning + family-focused + lots of original headcanons + no CP + mostly everyday life + short story] … … What happens after someone dies of sudden cardiac arrest? "You start out as a ball of light, get two older brothers as a bonus, and have a natural talent for magic." Stars pushed up a pair of nonexistent glasses and answered with feigned solemnity. Beneath the peaceful years, what lies hidden? A treasure and 112Reads—Score—Shelves
45. 45 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 165Reads—Score—Shelves

    Reader note

    That's all I have. I also wrote a book called "Beng Tie". If you are interested, you can read it.

46. 46 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.) 106Reads—Score—Shelves
47. 47 关 About My Love for an Oil Octopus 关于我喜欢一只石油章鱼这事 Clouds, Rain, Stars, and River云雨星河Anime Fanfiction329k WordsCompleted [Complete and signed] [Just an embarrassing old work] Nightmare otome It’s already an embarrassing old work (looks away) 122Reads8.2Score—Shelves
48. 48 传 Undertale: Sans's Revenge 传说之下：sans的复仇 Waxbi Xiaoxin蜡比小心Anime Fanfiction55k WordsCompleted The author writes this in a pretty messed-up way, so read at your own risk. Frisk massacres Sans again and again, and Sans dies over and over. Then, one time, Sans suddenly remembers the moment he and his friends were killed. It’s time to settle this, Frisk! 23Reads—Score—Shelves

    Reader note

    23333I forgot

49. 49 星 Honkai: Star Rail: How Is This Skeleton So Strong? 星铁：这个骨头架子怎么这么强 A Beautiful Little Firefly一只美丽的萤火虫呀Anime Fanfiction91k WordsCompleted “Seriously, Sans, can you take this seriously?” “Ha ha ha, March, you should know skeletons can fall apart.” (After being utterly destroyed by Sanb 114,514 times, an overworked office worker went out to clear their head, only to get hit by a runaway truck and end up in the world of Honkai: Star Rail. They awakened a System that lets them become a different judge every day, then set off on a wonderful adventure aboard the Astral Express.) A friendly reminder: You may want to go through the story 518Reads6.6Score100Shelves
50. 50 传 Undertale: A World Gone Wrong 传说之下，错误的世界 Bored Middle Schooler Jie Rui无聊的初中生劼睿Urban265k WordsCompleted A System that had just passed its evaluation couldn't wait to find its first Host. A Judge who had just experienced an era of peace. Everything seemed to fall perfectly into place, but it was all just part of “his” plan. 42Reads6.5Score—Shelves

Other lists with Honkai: Star Rail: A UKB