Being in a Niche Fandom Is Torture. Are There Any Sans AU Fics? 作为冷门圈的人异常痛苦，有没有sans Au的文啊啊

1. 1 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 616Reads8.1Score10014d adds

   Reader note

   Give AU Travelogue a thumbs up! [Sending a heart]

2. 2 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—14d adds
3. 3 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 Fanfiction330k 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 2.3kReads9.4Score18014d adds
4. 4 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 792Reads9.2Score10414d adds
5. 5 成 Becoming Error 成为error Zhiye Kalas Hali Si治也卡拉斯哈里斯Anime Fanfiction312k 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 1.9kReads8.7Score10714d adds

   Reader note

   There aren't many that can be posted. I still have some on my bookshelf. I've also written one myself; please take a look (even though it's not very well written).

6. 6 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. 19Reads—Score—14d adds
7. 7 转 Reborn as Murder 转生murder Lazy Yu懒惰的宇Anime Fanfiction112k WordsCompleted After countless massacres, Murder unexpectedly gained countless memories about UT. He also happened to join a chat group connecting myriad worlds, and began his journey across them. 181Reads6.5Score1814d adds
8. 8 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—14d adds

   Reader note

   I also wrote one myself, but it has very few chapters. You can check out the ones below.

9. 9 传 From the Start in Undertale, I Create a Sans Chat Group 传说之下开局创建sans聊天群 Lazybones Sans懒骨头杉斯Anime Fanfiction177k WordsOngoing I reincarnated as... Sans. The genocide route?! Liu Feng looks at the human before him as a Gaster Blaster slowly materializes behind him. Today is such a beautiful day... Papyrus, would you like something... How about we team up against the humans? Do I have any other choice? Dust Sans takes Liu Feng’s hand. (I’m new to this, so please be kind!) 52Reads8.1Score10214d adds
10. 10 M Murder, the One Who Carries Out the World's Will Murder，践行世界意志之人 oirAnime Fanfiction148k WordsOngoing [Anthropomorphism + System + Native, Not a Transmigrator; Undertale derivative, CP: Murder x Killer] … In the ceaseless cycle of reincarnation, who can remain untouched by endless repetition? Murder, born of Dusttale, was unexpectedly bound to a “System” at the end of a timeline. From then on, he was forced to travel through different times and spaces, helping the native Sans solve problems. After completing eighty-one missions, the plan to erase humanity would finally reach its conclusion! To d 17Reads6.7Score—14d adds

    Reader note

    The second book is Grey Baiye's new book, and its quality speaks for itself. The first book hasn't been updated in a long time, but those who like MK (Maka) fanfiction can check it out. The third book is quite good, drawing inspiration from Shan Si Factory.

11. 11 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 1.3kReads8.9Score12914d adds
12. 12 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 Fanfiction292k 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 419Reads6.7Score—14d adds
13. 13 论 On Having a Negative Soul in Undertale, Right 论负面灵魂在传说之下这件事，正 Sanming Ye Pu三明夜蒲Anime Fanfiction318k WordsOngoing (The author may not be very good at writing. Feel free to discuss any questions about the setting in the comments.) A soul arrives in a game world. He has no idea why he came here. All he has is the name Ming Chen, along with memories of the world of Undertale that appeared out of nowhere in his mind. Ming Chen: “I don’t know why I came to this world, but I just want to protect it, and the people who love me!” Frisk: “Ming Chen? Mm… very good! Except that you never take the initiative when it co 50Reads—Score—14d adds
14. 14 憧 Aspiring to Become... a Steamed Bun Spirit? 憧憬成为，馒头精？ A Chan sdh阿铲sdhAnime Fanfiction388k WordsOngoing A crossover fanfiction between Looking Up to Magical Girls and Undertale, written by a fan of both. If you can, I recommend getting familiar with both original works first, just in case you have trouble following the plot (*´ω`*). To avoid conflicts with the original works’ settings, this book’s world always follows the setting from the latest manga chapter available, Chapter 58. (Note: The book includes some elements from a certain game that’s been going from strength to strength.) 210Reads8.0Score3614d adds
15. 15 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—14d adds
16. 16 U UT: Our Everyday Lives UT：我们的日常 Li Xiaomi黎晓蜜Anime Fanfiction132k WordsOngoing [Undertale fanfiction + personification + Bad Sans crew(?)] An Undertale fanfic about the Bad Guys, with the characters personified. It's mostly everyday life and fairly low-stakes stories, set in my own world. I drew the cover myself, and there are lots of original headcanons, so if that's not your thing, please leave. I originally wrote this story just for myself, so go easy on me. 1Reads—Score—14d adds
17. 17 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—14d adds
18. 18 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—14d adds
19. 19 国 National Fate: Even Today, Sans Wants to Blow Up the System 国运：今天的Sans也想炸系统 Mo Liersha莫莉尔莎Anime Fanfiction74k WordsOngoing [No transmigration, no watching-the-story, no CP, with original Sans in the spotlight] There'll be secrets exposed, there'll be showboating, there'll be a little AU, and there'll be the author's long-delayed chuunibyou phase. A ridiculously squishy, unbelievably powerful mage with maxed-out evasion in every sense. I just want to see Brother Sans show off, have his secrets exposed, and then blast me, his unscrupulous creator, out of here. If you're happy, I'm happy, and everyone's happy. I recomm 208Reads6.6Score—14d adds

    Reader note

    Do you want these? (*^ω^*)

20. 20 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 263Reads8.7Score—14d adds
21. 21 传 Undertale: From Underground to the Surface 传说之下：从地底到地面 20086lrAnime Fanfiction226k WordsCompleted Most people are already familiar with the full storyline of Undertale, so I won’t go into it here. This book simply goes through the whole story so newcomers can learn the details. You can also choose not to read it; I’m not expecting many readers anyway. Later on, I might write some fanfiction or something, so don’t get your hopes up too high. 16Reads—Score—14d adds
22. 22 穿 Transmigrating After K-ing My Own Team 穿越自家K后的战斗生活 Taiga and Killing泰迦与killingAnime Fanfiction132k WordsOngoing [Transmigration + no System + no heroine + mindless] An abandoned work… 36Reads—Score314d adds
23. 23 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 91Reads—Score—14d adds

    Reader note

    There are a lot of books on my bookshelf, most of which are no longer being updated.

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. 80Reads7.3Score—14d adds
25. 25 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 62Reads6.5Score11414d adds
26. 26 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) 807Reads7.3Score10314d adds

    Reader note

    I'll help you.

27. 27 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 729Reads6.6Score10414d adds
28. 28 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—14d adds
29. 29 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 Fanfiction108k 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!” 389Reads—Score—14d adds
30. 30 传EN Undertale: I Forge the Perfect Ending! 传说之下：我！完美结局铸造者！ Chuan Shang Mang Ke川上芒可Anime Fanfiction208k WordsOngoing (Toxic-content warning: There is a female lead, neither lead is particularly strong, there are other transmigrators, some details involving time travel are inconsistent, and the pacing is slow at first. If you can accept all of that, then let’s begin!) AU name: LD! Undertale Lin De accidentally transmigrates to the world of UT! To reach an even more perfect ending, he travels through time and space, stepping outside the grasp of the unseen hand behind the scenes, all to understand the truth of t 279Reads8.7Score—14d adds
31. 31 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 Fanfiction942k 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 1.1kReads8.7Score13814d adds
32. 32 传 Undertale: Her Journey, His Echoes 传说之下：她的旅途，他的回响 Xu Xun, Who Loves to Argue爱吵闹的绪寻Anime Fanfiction130k WordsOngoing (This is the author's first time writing, so the prose may not be very good. Feel free to discuss the setting, but please don't bring your personal headcanons into other works.) This book is also known as Undertale: This Human Is Adventuring Again Today I'm not good at writing synopses. Please head straight to the story. After the multiverse arc begins, the romance will be different from what came before, including the blurb. When he woke up, Ze Peng found himself on a mountain. As he walked for 175Reads6.6Score—14d adds
33. 33 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—14d adds

    Reader note

    UT isn't exactly unpopular. AU recommendation: *Becoming an Error* (you can find it on my bookshelf). Uh, while 1 and 2 below both deal with national destiny, they're better than other out-of-character stories. (AUs will appear.) 3 Has a MHM pairing (murder x horror, no difference). But it's not a mindless story; I quite like it.

34. 34 传 Undertale: The Second Soul of Justice 传说之下：第二个正义灵魂 Meng Lin梦磷Anime Fanfiction123k WordsOngoing [Lots of original characters] [Fanon and original elements combined] [Undertale fanfic] This is a newbie's first book, so the writing might not be very good. Feel free to offer suggestions. Uh, what I write later gets a little... very small amount of abstract. 10Reads6.4Score—14d adds

    Reader note

    These are some of the dishes that suit my taste, and I mentioned that there are still some left at home for me to take.

35. 35 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 381Reads6.9Score—14d adds
36. 36 国 National Fate: Sans's Bizarre Adventure 国运：sans的奇妙之旅 Wan Yi WY万意WYAnime Fanfiction448k WordsOngoing [Undertale] + [National Fate] + [Watch-Along] + [Various Sanses] + [Minecraft] + [Indie Games] + [ErrorTale] + [Pleasant Goat and Big Big Wolf] After countless massacres, Player left this world for reasons unknown. The Underground Kingdom enjoyed a long period of peace, and thanks to Frisk’s efforts, the monsters reached the surface and began a new life. However, the arrival of the National Fate System brought new changes to this world… I’m a new author, so I may revise some chapters repeatedl 322Reads8.6Score—14d adds
37. 37 传 Undertale: Special Incident 传说之下，特殊事件 omni404Anime Fanfiction107k WordsOngoing This book came about because I made a mistake and ruined my previous work, Underverse: Transmigrated as Sans, so I switched over to this one and continued writing here. That's it. (Updates weekly, or less often.) —Reads—Score—14d adds
38. 38 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!” 190Reads6.6Score—14d adds
39. 39 U UT: A Light Child's Underground Travels UT：光之子地底旅游记 Garlic Sauce Mixed with Plum Burger蒜汁混梅子堡Anime Fanfiction112k WordsOngoing Can Anyone Turn Down a Fluffy, Super-Polite Child of Light? While exploring the Isle of Dawn, Qiandao missed a step and fell into some hole or other. When Qiandao woke up, they saw golden flowers beneath them and a child frantically shaking them. Qiandao fell silent. The good news: no more exploring. The bad news: there are no candles here. A new writer’s first book, hahaha! This is not the author’s own AU!!! It isn’t!!! You can read it as a transmigration story. A little idea inspired by Sky: C 213Reads6.6Score10914d adds
40. 40 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 196Reads8.0Score—14d adds
41. 41 尘 Dust and Rhapsody: The Final Judgment 尘埃与狂想曲：终焉裁决录 Jin Shizu of Liebei烈北的晋世祖Anime Fanfiction211k WordsCompleted I'm an Undertale fan and wanted to read a book about a mirror-world Dust gone mad. I couldn't wait, so I wrote one myself. Of course, the Dust here is a modern person who transmigrated, and only has the knowledge of a modern person. I also used SKMI's settings as a reference. New writers, please be kind. 82Reads—Score—14d adds
42. 42 咒 Jujutsu Kaisen: Sukuna Is My Dad? 咒术回战：宿傩是我爹？ Star JBM星JBMAnime Fanfiction206k WordsCompleted Please don’t read this book. It’s an embarrassing relic from my past, especially awful, and some of the weird, absurd stuff in it is best avoided! Seriously, beware! (◍–ᴗ–◍) If you do read it, please try not to leave comments. It’s just too embarrassing, OK? 1.5kReads8.7Score14414d adds
43. 43 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—14d adds
44. 44 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 365Reads8.4Score10514d adds
45. 45 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! 58Reads—Score1214d adds
46. 46 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) 102Reads8.2Score—14d adds
47. 47 U UT: About My Family of Evil Bones UT：关于我家有邪骨团这件事 YOLOjingkAnime Fanfiction94k WordsCompleted This is my second book. It shares the same worldbuilding as the first, so I guess you could call it a little crossover. The beginning is pretty rough, but I promise the later plot will satisfy you. The author is a fan of many things, so there may be quite a lot of elements. Please bear with me. 9Reads—Score—14d adds

    Reader note

    I can only post these few books; I have more on my bookshelf. I also wrote one myself.

48. 48 传 Underfell: From the Start, I Have Sans's Abilities 传说之下开局就有sans的能力 Sao Moshui骚墨水Sports150k WordsOngoing Liu Yang stumbles upon a System and gains Sans’s abilities. He can use them in the real world or transmigrate to various AUs to help or destroy the worlds of other Sanses. What will he do? 70Reads6.8Score—14d adds
49. 49 传 Undertale: TL 传说之下：TL Ah Long Ah Long Ah啊龙啊龙啊Anime Fanfiction47k WordsCompleted TL is an abbreviation for timeline. We don't know where time ends, just as we don't know where it begins. 25Reads—Score—14d adds
50. 50 我 I Opened a Bone Daycare in the Real World, Shocking the Internet 我在现实开了骨头幼儿园震惊全网 Song of Dreams梦想之歌Modern Romance78k WordsCompleted [This story has CP pairings: Tomato and Wasabi, crnm, ie, and ckc. No male lead. If you don't like it, please don't flame me.][The beginning is an explanatory section for newcomers. If I start introducing test subjects, that means I'm telling you about my original Laboratory series. It's my own creation, so feel free to make derivative works, but don't go too far or ruin the characters.][The first part is an introduction and explanation; the national destiny plot comes later.][One day, the prota 41Reads—Score—14d adds

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