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- 51 National Fate: Geno Still Has Determination 国运:Geno还有决心 [Author Has a Bad Case of Laziness]+ [Awful Writing]+ [OOC]+ [Headcanon] (This geno is one who failed to become a fe.) *This is only a nightmare *Wake up, geno *You are our hope … *Keep your determination, geno 78Reads—Score—Shelves
- 52 National Fate: Is Geno Going Home Today? 国运:geno今天回家了吗? No humanized characters. The cover is mainly because I can’t draw skeletons ( It’s a national fortune survival game (sigh) + livestreaming + a bit of power fantasy + no roleplay + OOC + some characters get redeemed (like Killer) + some unofficial settings and headcanons + some characters have boosted combat abilities. The writing is bad, it’s very OOC, and I feel like I’ve made the characters act weird. The plot is also pretty unhinged, so don’t think too hard while reading. The CP is undecided 146Reads—Score—Shelves
- 53 National Fate: Sans Tried to Slack Off, but Failed 国运之sans摆烂未遂 Ultraman. Classic National Destiny setup. No transmigration, with AU characters. Parts not mentioned in the original may include my own headcanon, and characters from other works will make guest appearances. I'll write whenever inspiration strikes. Basically, I want to write something fun, and I'll try not to break your heart… probably. There'll definitely be some revelations about the past, too. All in all, I just want to serve up some real feast-for-the-soul action and have everyone kick ass. 167Reads7.1Score—Shelves
- 54 The Strange Tale of Shan and Yu 衫与鱼的怪谈之旅 [UT + AU + National Fortune + Urban Legends + Not a Power Fantasy + Not Mindless + No System + No Transmigration + No CP + Killer!Sans + Undyne] The author is a lazy slob, so there's no way I'm going to update regularly. This story leans toward comedy, with daily life as its main focus. (Of course, the everyday chapters are the best.) Special notice: You absolutely, absolutely have to read Chapter One! And you absolutely, absolutely have to read the prequel! Second edit: The book has officially 142Reads7.0Score—Shelves
- 55 UnderTale FNF Sans in the National Destiny Game 传说之下fnf衫在国运 After meeting BF in Sans, he learned a new skill: rap. Once that was done, I couldn't think of anything else to write, hahaha. I'm planning to start this book from scratch, so give it a follow! Also known as: IndCross Sans in National Destiny 59Reads—Score—Shelves
- 56 Zenless Zone Zero: Sans's Bone-Carving General Store 绝区零:sans的骨头万事屋 [This story combines Undertale and Zenless Zone Zero. Since the author likes UT more, the story may lean a little more toward UT.] [For example, Frisk is recognized as a Void Hunter and is currently staying at the embassy in the Ipo District.] [After the monsters left the Underground, the fluffy king named the place where they settled the “Ipo District.” The name has been officially recognized.] After the Underground is freed, Frisk becomes a “peace ambassador” between humans and monsters. But o 68Reads—Score—Shelves
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57
Arknights: The Bizarre Adventures of the Sans 明日方舟:sans们的奇妙冒险
There’s ut, Guizhou Fish King (Guizhong Yuwang), a sudden change, UB, UKB, cotv …
41Reads—Score—Shelves
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- 58 From the Start in Undertale, I Create a Sans Chat Group 传说之下开局创建sans聊天群 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!) 52Reads8.1Score102Shelves
- 59 Reborn as Murder 转生murder 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. 189Reads6.5Score—Shelves
- 60 Transmigrating After K-ing My Own Team 穿越自家K后的战斗生活 [Transmigration + no System + no heroine + mindless] An abandoned work… 30Reads—Score—Shelves
- 61 UT: A Multiverse Calamity UT:多元宇宙之灾 My new work is here! You can find it on Tomato Novel and read my stories. I hope you’ll enjoy them. Your support motivates me to write, and I’ll do my best to tell every story well! 2Reads—Score—Shelves
- 62 Undertale: Sans and the New Parallel Universe 传说之下:Sans与新平行宇宙 Gaster discovered the truth about Undertale, and the mysterious deal finally came to an end… When Sans wakes from a deep sleep, he finds that his powers are growing stronger, and everything around him seems different than before… What is the price of power? Sans sets out on a journey to find the answer, witnessing the monster kingdom’s new development along the way, until… He meets two humans… P.S. This is the author’s first book, so I’m still pretty nervous… 17Reads—Score—Shelves
- 63 Genshin Impact: A Journey Through Teyvat’s Dust 原神:尘埃的提瓦特之旅 [The author only wrote this book out of boredom, so the writing might not be very good.] A white room, A painful memory, A determination that will never die, A madman? A wondrous adventure, A chance to atone, A loyal friend. And so this adventure begins... 129Reads—Score—Shelves
- 64 Genshin Impact: But It’s a Fatal Error 原神:但是致命错误 [Discontinued] A note before reading: This Fatal Error isn't that Fatal Error. This one is from UT! (Don't mix them up.) Synopsis *Who... am I? *Where... did I come from? *I... think I *for got some thing... *I'm Geno... right? *No, I-I-I am am-I-I-I *fatal_error 4Reads6.5Score—Shelves
- 65 Undergoodluck [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
- 66 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? 70Reads6.8Score—Shelves
- 67 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
- 68 Chaotic Tale 繁乱传说chaotictale Adapted from the game Undertale. A friendly warning: This novel contains major spoilers. We recommend playing the original before reading. This novel is geared toward beginners. Even if you haven't played the original, you'll still be able to follow it. 4Reads—Score—Shelves
- 69 Everything Began with a Mistake, but When Will It End? 一切从差错开始,又到何时结束? After everything went wrong for the protagonist, he transmigrated to Error Tale, but he didn’t fully merge with the body. His negligence led to everyone in his world perishing, so he decided to travel to other worlds and help the skeletons who were suffering. 26Reads—Score—Shelves
- 70 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 [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 44Reads—Score—Shelves
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71
Blue Archive: Becoming a Teacher and Showing My True Strength 碧蓝档案【成为老师拿出真实力】
This novel has a male lead and no female lead, and gets a little angsty, but it's safe to read. On its own, the story has quite a few rough spots, so I recommend listening to the audiobook and choosing the cheerful young man's voice. Please, give it a rating already! Blue Archive is a 2D-style urban mobile game that has made a name for itself internationally with its beautiful graphics and engaging story. Not everyone gets to transmigrate, but Yuhan is one lucky person. Perhaps beneath this blue
46Reads—Score—Shelves
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72
Hello, My Name Is Ink! 你好,我叫ink!
[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
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73
UT Fanfiction: Beneath the Dust ut同人:尘封之下
[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
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74
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
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- 75 Undertale Otome: A Dimensional Divide UT乙女:维度之差 An Undertale fanfic (I'll keep it as accessible as possible, and I'm new to the fandom too). Otome-oriented, a slight reverse harem (without that label, it would be hard to explain why they're fond of her), and mostly sweet (though the protagonist still has to suffer; it's not mindless fluff). There are a moderate number of skeletons, and it won't end up as a one-on-one pairing. Well, it's a story about a creator getting thrown into a lower dimension and then meeting all kinds of skeletons. It i 18Reads—Score—Shelves
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76
UT: Agnoy's National Fate Journey UT:Agnoy的国运旅途
Agony!Sans: My OC. It means extreme agony. You can call it Extreme Pain or Agony Sans. [UT + National Destiny + transmigrate + AU + not invincible + no CP] The story starts with the National Destiny game, though other content may appear later. This is about writing an angsty OC who gets hit by a truck. Yep, from the 16th floor. Then they transmigrate into my OC. Just as they’re feeling hopeless and trying to slack off, they get pulled into the National Destiny game. Something seems to have chang
26Reads—Score—Shelves
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- 77 UT: Daily Life After Transmigrating into an AU UT:穿越AU的日常 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
- 78 Deltarune: The Second Human in Town 三角符文:小镇上的第二个人类 [Deltarune + Terraria (Calamity) (The Traveler) + Plants vs. Zombies] A super Deltarune DLC! The author recommends starting from Chapter 5! There are so few Deltarune books... Could you leave a five-star review? 38Reads—Score—Shelves
- 79 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
- 80 Undertale Fanfic: A Few Things About a Certain Parallel Universe UT同人:某平行宇宙的那点事 [Everyone is humanized + tons of headcanons + multiple pairings and everyday life] (This is my first time writing a book, so please bear with me.) (Please don’t get too attached to the original characters, or they’re guaranteed to go out of character.) As you can see, the characters in this somewhat strange Undertale AU have all been turned into humans. There are no bone-filled brawls across the multiverse here, just a simple, peaceful daily life, with the occasional little trouble cropping 103Reads—Score—Shelves
- 81 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!” 190Reads6.6Score—Shelves
- 82 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
- 83 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 196Reads8.0Score—Shelves
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84
Transmigrated as Sans, I Go Around Looking for Fun 穿越成sans到处找乐子
Looking and looking for fun, and finding a little fun. Someone transmigrates into Sans and awakens a Fun System. They are determined to travel between every AU.
43Reads—Score—Shelves
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- 85 Bullying My Brother Feels Good for a While, Then Comes the Heartbreak 虐弟一时爽,碎梦火葬场 [Undertale + Dreamtale + Bad Sanses + cunning Shattered] Extremely OOC, and it gets extremely melodramatic later on. Fanfiction. Fanfiction (emphasis on that again). A fanfic of Undertale and Dreamtale: Shattered Dream. It has two volumes. The first tells the familiar old stories, and the second follows up with my own original continuation. The protagonist seems innocent but is secretly dark, and his younger brother is yandere. 1Reads—Score—Shelves
- 86 Undertale: The Genocide Route 传说之下【屠杀线】 Our battle takes place in the corridor; who wins and who loses is determined by the truth. The killer's heart has already fallen into endless darkness. This is Undertale's [Genocide Route]. 17Reads—Score—Shelves
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87
Aspiring to Become... a Steamed Bun Spirit? 憧憬成为,馒头精?
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.)
215Reads8.0Score—Shelves
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88
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
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89
UT: About My Family of Evil Bones UT:关于我家有邪骨团这件事
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—Shelves
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- 90 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. 48Reads—Score—Shelves
- 91 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
- 92 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
- 93 Suddenly, I Got My Own System 突然多了个自己的系统 (No female lead + AU spin-off + original AU setting + plot-focused) In short, it's just my weird ideas... I'm only writing for fun... It may involve all sorts of elements, but the main focus is my, um... babies. I woke up one day... and things outside seemed to have changed. I don't know what changed, but it claims that I created it, that it belongs to me... that it's mine... Whatever... It's fine... Let's just leave it at that. 29Reads—Score—Shelves
- 94 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 41Reads6.5Score—Shelves
- 95 Genshin Impact: Transmigrating to Teyvat with G-Dad 【原神】与G爹穿越到提瓦特 Invincible + Sweet Romance + Fanfiction A young man who despises tragic storylines above all else gains the [Observer] mindset through his own insight. While transmigrating to Teyvat, he is intercepted along the way and meets Gaster. After breaking free of his restraints and forming a bond with Gaster, the two transmigrate to Teyvat together. Using the power of a supreme dimension, they change the course of Teyvat's timeline. 10Reads—Score—Shelves
- 96 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
- 97 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
- 98 Honkai Impact 3rd: I Have an AU Template 崩坏:我有AU模板 (Honkai Impact) + (Honkai: Star Rail) + (Undertale) + (AU) [Note: The author thinks the earlier writing was terrible, so the story restarts in Volume Three. I recommend jumping straight to Volume Three (sob) (T ^ T)] [Another note: There will be lots of questions about the setting. If anything is wrong, just treat it as a new setting from the author. ( ̄∇ ̄)] (AU is short for alternate universe. Here it refers to Undertale AUs, so please stop asking. (Sigh)) (Just to clarify, I've upgraded the Tre 8Reads—Score—Shelves
- 99 Honkai Impact 3rd: Did I Turn Into a Bug? 崩坏:我变成了一个错误? [Multiple Heroines] [MiHoYo] [Complicated Elements] [Error] I’m Eilong, a programmer. One day, while I was fixing a bug, the computer code suddenly surged around me like a tide. I felt an unbearable, tearing pain, until eventually I couldn’t feel anything at all. When I came to, I found myself in a pitch-black space with a pink-haired little girl. Where was I? Who was this girl? And what had happened to my body... why did it look like a mass of garbled code? P.S. The protagonist has some abilit 72Reads—Score—Shelves
- 100 Oh No! Sans Has Become a Teacher! 完辣!sans当上老师辣! (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 2Reads—Score—Shelves
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