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51
I Am Sans 我,即是sans
(A new author writing for the first time. Please be kind if it’s not your cup of tea.) Undertale fanfiction Zhang Ran was already dead, but he discovered he could crawl out of his own grave. He thought he was a zombie, but then... He accidentally took in a younger brother and tried to survive in the world of Undertale. Undyne: I can't beat him! Papyrus: My brother is the best! Chara: ... The grass on his grave is already two zhang tall. (He may transmigrate to other worlds in the future.)
27Reads—Score—Shelves
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- 52 On Transmigrating into Undertale 论穿越到传说之下这件事 The story of an “ordinary person” who transmigrates to Undertale and strives to achieve the perfect ending. (Please point out anything that could be improved. The protagonist may not have a pairing.) I’m not good at writing synopses, so please read the story. This book is also titled: “An Idiot’s Journey Through Undertale.” (Being reset; chapters xx onward have already been reset.) 77Reads7.0Score—Shelves
- 53 Undertale: The Apocalypse in My Dreams 传说之下:梦中末世 Ye Chenlin is an ordinary high school student, but during a dream he manages to make contact with another world. He can switch between dreams and reality, going from a newbie at LV1 to a level-100 powerhouse in the blink of an eye. (Undertale content will appear later. The earlier chapters mainly focus on Ye Chenlin, his younger sister in the dream, and their school life.) There will also be some romance. 4Reads—Score—Shelves
- 54 Undertale: An Encounter in the Apocalypse 传说之下:末世邂逅 Cover: Folding Paper in the Rain Preface: If you like it, please leave a comment before you go. If you leave a bad review, could you include suggestions for improvement? This is my first time writing a book, so I'm inexperienced. I'll fix the book's "bugs" every day. [Undertale transmigrates into the apocalypse] Feelings are like ink. In the end, they only hold you back... By chance, they descended from the Underground... bringing dreams and hope... And determination. The scariest thing in th 11Reads—Score—Shelves
- 55 Honkai Impact 3rd: Undertale Legends: Creation: Bronya 崩坏三传说之下:创造:布洛妮娅 All of this is old lore. If you want to see the real story, please make your way over to Legend of the Collapse: Bronya Is Creating... Thank you for your support!!!! —Reads—Score—Shelves
- 56 Judging Villains Across All Worlds with Sans’s Powers 用sans的能力审判万界反派 What is coming? An Arbiter. Have you ever heard of an Arbiter who can control gravity? An Arbiter who can wield a Dragon Bone Cannon? An Arbiter who can become a god? That’s right, the Arbiter who judges all worlds and stands against the villains is named Chen Feng. He even founded the Arbiter Association. You sinners, prepare to face judgment! (A reader-created shared world, no harem, no female lead, no System, and no saintly protagonist.) 1Reads5.2Score—Shelves
- 57 UT Transmigrates into Anime: The Pokemon Arc UT穿越动漫之宝可梦篇 (Currently being rewritten, so it's best not to read this yet) You clicked in? Hello, everyone. Welcome to my experiment. To put it simply, I take code from Undertale and use it to insert myself into other worlds for observational experiments. Why? For the entertainment. Come on, scroll down. 20Reads—Score—Shelves
- 58 A Journey Through AU 穿越AU的旅行 A strange life was born from the explosion of an AU. Calling himself Lan Gu, he drifts from one AU to another from time to time. No one knows what he wants. All they know is that people who cross paths with him never seem to come to a good end... 3Reads—Score—Shelves
- 59 Undertale: Sans's Revenge 传说之下:sans的复仇 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! 15Reads—Score—Shelves
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60
Genshin Impact: Reborn in Fontaine as Fufu’s Big Sister 原神:重生枫丹之我是芙芙姐姐
“A strategist enters the game himself, and with one move can outplay the emperor.” The moment Furina Chen entered the gacha pool, she became a work of art. [HoYoverse, give us our Furina back!] [So everything was part of her plan?] [Rest in peace, Focalors. We offer you our highest respect… Furina Chen de Fontaine.] [Here’s fifty-seven or eighty million Mora for the lawyer’s fees… HoYoverse, give us our wife back!] [Furina Chen/Furou’s move was brutal.] [There’s another twist?] “Fufu… Sister… I’
192Reads—Score—Shelves
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Honkai: Star Rail: The Judge from UT 星穹铁道:源自UT的审判者
[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
160Reads—Score—Shelves
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62
Undertale: Soul Swap 传说之下,灵魂转换
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
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63
ART and Sans’s Amazing AU Adventure ART一sans的AU奇妙冒险
This is mainly about the strange adventures of ART, a Sans from an AU. Various popular and obscure AUs will appear, and the story includes The Song of Hell and Evil Shirt Showdown, as well as various AUs of my own. A warning: the story contains angst, so don't expect anything especially happy. Also, the author is still a kid and can't update every day, so don't rush me.
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- 64 Underfell: From the Start, I Have Sans's Abilities 传说之下开局就有sans的能力 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? 73Reads6.8Score—Shelves
- 65 Tale of Dust: An Invitation from a Mysterious Organization 尘埃传说,神秘组织的邀请 Sans was tired of watching humans slaughter his kind over and over. He couldn't bear to see his family and friends die before his eyes again and again. He decided to fight back. But no matter what he tried, he couldn't defeat the humans. Even when he chose to kill his family and friends to increase his strength, he still ended in failure. Then, a mysterious organization suddenly invited Sans —Reads—Score—Shelves
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66
UT Glitch Incident UT差错事件
Transmigrate to the UT world? Join Chen Ye and the main cast as they explore this strange UT world. *Keep your determination!!! [This book has no comedy whatsoever•Seriously]
1Reads—Score—Shelves
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67
UNDERTALE: The Third Fall UNDERTALE第三陨落
"The collision of universes will bring about many strange things. Even if you don't wish to reach out and touch them, I hope you can emerge victorious from these three trials of despair." Among mountains made of skulls, he removed his bloodstained shirt and silently offered the Holy Grail in his hands to the dark expanse of space. What filled the Holy Grail were the stars in his eyes.
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- 68 System: The Myriad Realms! Creating the Backrooms! 系统:世间万界!创造后室! In short: The protagonist dies in Chapter One, then comes back to life and gains multiple personalities, including Sans and others, some of whom aren't even human. He then uses the System to gain the privilege of building Backrooms. Then space-time shatters, and a whole lot of other stuff happens, blah blah blah. God should come. Everyone can be Jesus, but no one can be Jesus. The passage to God is closed, fellow believers... Maybe this is an opportunity. But now, God has come to take care of us 17Reads—Score—Shelves
- 69 Beneath the Gnawing Hunger 饥辘之下 A little girl named chara accidentally falls into the Underground, where she meets all kinds of strange monsters: the peculiar Flowey, the gentle Toriel, the squinty-eyed Frisk... chara seems hungry, very hungry... Every time she dies, an unbearable hunger consumes her. Will she eat all the monsters? —Reads—Score—Shelves
- 70 Genshin Impact: Becoming the Bone Demon God 原神:成为骨之魔神 Lan Gu transmigrated into the world of Genshin Impact and became one of Teyvat’s Archons: the Bone Archon. As a skeleton, Lan Gu has no grand ambitions and spends every day doing nothing. But will trouble keep coming to his door from time to time? P.S. It’s normal if you can’t follow this book. It’s just the second season of my previous novel, “Transmigrating into Genshin Impact: Am I a Bone?” [No System; the main plot comes later; not sure if there’s a female lead] 1Reads—Score—Shelves
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71
Undertale: Special Incident 传说之下,特殊事件
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.)
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- 72 National Fate: Sans's Bizarre Adventure 国运:sans的奇妙之旅 [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 321Reads8.6Score—Shelves
- 73 National Fate: But Xiaohua 国运:但是小花 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
- 74 UT: A Light Child's Underground Travels UT:光之子地底旅游记 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 217Reads6.6Score109Shelves
- 75 Undertale: The Hardest Perfect Ending to Achieve 传说之下:最难达成的完美结局 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
- 76 What If the New World Kamen Rider Build Merged Into Was Undertale? 如果战兔合并的新世界是传说之下 An Undertale × Kamen Rider Build fan work “LOVE and EVOL are simply the two sides of the same coin...” “Will you remain in the Hall of Judgment and turn to dust, or reach out and seize the possibility of evolution...” Evolto looked at the skeleton who was about to turn to dust and held out his hand. “Sans the Judge?” 3Reads—Score—Shelves
- 77 Dust and Rhapsody: The Final Judgment 尘埃与狂想曲:终焉裁决录 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. 90Reads—Score—Shelves
- 78 Clearing Genshin Impact in the Style of UT 以UT的形式通关原神 I’m Yi Yang, an ordinary person with a somewhat complicated past… or no, I should call myself a “Fusion Monster” now, one of those from the True Lab. Please don’t mind my appearance too much. I’m a pacifist, and I just want to make a few positive changes in my spare time. But things haven’t gone quite according to plan… First, not being able to communicate with people from a world where “monsters” exist is pretty rough. And secondly… I don’t remember agreeing to let you freeload on my soul and b 47Reads6.5Score—Shelves
- 79 Genshin Impact: Sans's Bizarre Adventure 原神,sans的奇妙冒险 [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
- 80 A Misstep: A Journey Beginning in Teyvat 差错:从提瓦特开始的旅行 Mo Zha x Venti (Genshin Impact + Two Male Leads + Sweet Romance + Transmigration) After entering Teyvat due to an unusual mishap, Mo Zha thought this continent was just an ordinary Teyvat. But as he ventured further, the world gradually began to edge toward “collapse.” It proved the truth of those words: “The old throne has fallen, and the new king has yet to ascend.” He must survive in the shadow of the throne while facing attacks from other transmigrators and the world's “collapse” caused by t 496Reads7.0Score104Shelves
- 81 Minecraft: Starting as an Undertale Judge 我的世界:从传说之下审判官开始 "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? 69Reads—Score—Shelves
- 82 Undertale! Why Is There a Creeper Here? 传说之下!为啥这里有只苦力怕? The power levels in this story are completely broken, so please set your brain aside before reading... (Don't worry, they won't fall apart early on, at least not on a narrative level. If you're here for the power scaling, you can let the chapters pile up first.) Perk Helmet arrives in the world of Undertale and sets off on an adventure... With his ability to control things with his mind, he travels through all kinds of AUs, and in the end... —Reads—Score—Shelves
- 83 Undertale: From Underground to the Surface 传说之下:从地底到地面 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. 15Reads—Score—Shelves
- 84 A Story from Honkai 来自崩坏的故事 The protagonist is almost invincible, and the story focuses on the main plot, with very few fight scenes (because the author doesn’t know how to write them). This is just a hobby project I’m writing for fun, so please set your brains aside while reading for the best experience. Thanks, everyone! 2Reads—Score—Shelves
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85
Undertale: Final Judgment 传说之下:终末审判
A reminder, the first world is not Undertale! It's just an AU that's very similar to the original. Other fan works may also be involved, and possibly Poems of Hell?
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- 86 Genshin Impact: Giving the Heavenly Principles a Good Person Card from the Start 原神:开局给天理好人卡 (Mostly everyday life + romantic rivalries + the author’s first time writing + the System is purely a tool) The young man seemed to have been picked by the god of misfortune. His life had been one streak of bad luck after another. But after collecting all the Good Person Cards, a new life came his way. Bound to a Good Person Card System, he ran into the Heavenly Principles from the start, along with a rotten System. But the mysterious identity granted by the System’s rewards was a little too out 243Reads8.6Score—Shelves
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87
UT: From Minecraft to Undertale UT:从我的世界到传说之下
By chance, Ke Yimeng transmigrated into My World and obtained a Multiverse Panel. A mysterious person told him that they would explain how to use it five hundred years later. After enduring an incredibly difficult five hundred years, Ke Yimeng found that mysterious person and used the Multiverse Panel to travel to another world… (New author with limited ability. Please don’t flame me if it’s not to your taste.)
68Reads—Score—Shelves
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- 88 Zenless Zone Zero: Where Did This Custard Tart Come From? 绝区零:哪来的酥皮蛋挞? 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!” 399Reads—Score—Shelves
- 89 Beast Taming: Together with My Bone Brothers 御兽:和骨兄弟一起 [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
- 90 That Time I Went from an AU to the World of Ponies 关于我从au穿到小马世界那档事 Mu Qingyi, a high school sophomore in the 21st century, was abducted by a beam of white light while watching UT videos at home. He arrived in a world with only 27 hours left and became Sans. Later, for reasons unknown, he ended up in the world of My Little Pony. He doesn't know much about this world; he's only seen one or two episodes. But he discovers that he seems to be the strongest one here. And so, a vacation in another world begins. 168Reads—Score—Shelves
- 91 Undertale: Dust's Search for His Bro 传说之下Dust劳弟的寻哥记 [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
- 92 Undertale: I Transmigrated into the Hypocrisy Route from the Start 传说之下:开局穿越伪善线 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!” 200Reads6.6Score—Shelves
- 93 Undertale: A World Gone Wrong 传说之下,错误的世界 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. 50Reads6.5Score—Shelves
- 94 Sans's Transmigration Journey Sans的穿越之旅 The author, Feiyun, has actually played Undertale. I'm not a poser, and I'm definitely not some meme-obsessed kid!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 1Reads—Score—Shelves
- 95 Chara: A Glitch in the Undertale Timeline chara传说之下错乱时间线 By chance, in an unexpected shower of starlight at a comic convention, she was chosen by a terrifying bolt of multicolored lightning. And so began a wondrous adventure in Undertale. Reincarnated as Chara in a chaotic timeline full of uncertainty, she was bound to a "salvation" System and created a UT chat group. Across the multiverse, she journeys and embarks on adventures!!! 6Reads—Score—Shelves
- 96 Undertale: Glitch Imbalance Undertale差错失衡 This story is based on the original Undertale and is a UT fan work created by me. It does not include an introduction to the original story, so it is not suitable for novel fans with no prior knowledge. I recommend learning about the original UT first before reading. —Reads—Score—Shelves
- 97 Undertale: The Second Soul of Justice 传说之下:第二个正义灵魂 [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—Shelves
- 98 Transmigrating to Another World, My Family Has a Shirt 穿越异世界家里出衫 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
- 99 Jujutsu Kaisen: Sukuna Is My Dad? 咒术回战:宿傩是我爹? 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? 1.5kReads8.7Score144Shelves
- 100 How I Awakened Sans's Powers 关于我觉醒出sans能力这件事 No System, villain protagonist, Undertale, Sans The protagonist awakens with Sans’s abilities from the start. Later on, he’ll become Sans completely. Then all kinds of things happen. He transmigrates across different worlds, becoming a drifter who wanders the multiverse. The early chapters are just setup. Ah, the second world is Jackie Chan Adventures. That status panel is just filler. It disappears later. The current world is the Foundation universe! 26Reads—Score—Shelves

















































