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- 51 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
- 52 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
- 53 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
- 54 Undertale: National Destiny and Runes 传说之下：国运与符文 (UT + DR + National Destiny + watch-along + Sans) One day, National Destiny suddenly descends. In order to rescue the chosen Papyrus and Frisk, Sans is forced to go somewhere both “familiar” and “strange.” 27Reads—Score—Shelves
- 55 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
- 56 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
- 57 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
- 58 On Having a Negative Soul in Undertale, Right 论负面灵魂在传说之下这件事，正 (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 51Reads—Score—Shelves
- 59 Sans's Time in Gensokyo sans于幻想乡的时光 Sans's Days in Gensokyo, also known as The Eastern Repair Chronicles Note: This isn't the original Sans. His personality is as close to the original as possible. This story contains a lot of fanon elements, mostly from Touhou and a little from UT, since Touhou fanon is often more interesting. The characters may act out of character, though I'll try to avoid that. Updates are irregular, so read at your own discretion. AU + Sans + Touhou + light dice rolling + a little meme humor (please don't com 96Reads—Score—Shelves
- 60 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 73Reads—Score—Shelves
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61
Undertale: A Look Back at the Journey from Dust 传说之下：盘点从尘埃开始
Undertale: Watch Party A huge black screen, like a movie theater screen, suddenly appeared in the Undertale universe. As the many AUs stirred and went on alert, the screen… lit up! It showcased unusual timelines caused by the original game’s Genocide Route. One by one, these timelines of extraordinary events appeared: Dust! Disbelief! Killer! The Unseen Ending… and many more. After the first showcase ended, people discussed what they had seen. Then the second showcase began! This time, it featur
429Reads—Score108Shelves
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62
Zenless Zone Zero: The Judge from UT 绝区零：源自UT的审判者
[Zenless Zone Zero]+ [Honkai: Star Rail]+ [UT]+ [MC]+ [No Male Lead]+ [Fluff]+ [Memes/Comedy/Daily Life] (Please don’t flame if it’s not your thing.) A parallel universe of UT. Among the many AUs, the Star Domain is an unremarkable one, and it is still being rebuilt even now. The Star Sisters, Xingcheng and Xingyun, currently live in all of CORE!Frisk’s Omega timelines. While creating their own world, the sisters often travel to other AUs, calling it a way to balance work and rest and gather ins
23Reads—Score—Shelves
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63
The Business of Bone and Shell 骨壳商途
The Underground Sales Pitch of a Skeleton In this Undertale AU, [Legendary Salesman of 1997] Spamton swaps [bodies] with a [skeleton], but instead of landing in trouble, he smells [the opportunity of a lifetime]. He chooses the fiery [skeleton brothers] as his partners, repackages his obsession with [capturing humans] as a business venture, and starts preparing a [Human-Capturing Training Camp]. He turns the [spaghetti stand] into a storefront and promotes his own brand. With absurd marketing,
45Reads—Score—Shelves
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- 64 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
- 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 The Unsolvable Undertale 传说之下无解 An unsolvable problem, yet people keep trying to find an answer, even though they don't want it solved. Some are always searching for a path. Along the way, some have forgotten why they set out on it, but there will always be others who keep following it. A note from the author: This book contains a lot of original and personal headcanon. If you're not good at reasoning things out, I recommend not reading it. If you insist, prepare an antidote and something to help you cope, because readers who 20Reads—Score—Shelves
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67
Anime Crossover: Mantou Sets Out from Demon Slayer to Avenge Regrets 综漫：馒头从鬼灭起挽救遗憾
He pressed “Save.” When he opened his eyes again, he was beneath the moonlight in an unfamiliar forest. In his pocket were only a hot dog, a comb, and a leaky whoopee cushion. And a piece of packaging folded into a little square. Colored flecks of light were embedded along its edges. It was the thing he had shattered. There were no save files in this world, no resets, no “try again.” Only ghosts, and people, and blood that had flowed without pause for four hundred years. He had only been passing
114Reads—Score—Shelves
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- 68 Publishing Undertale in Deltarune 在三角符文中发布传说之下 On a timeline where no one discovered the Dark Fountain, the legends buried underground have begun to surface. The key members are here, and a legendary story is about to unfold on a computer screen. 1kReads—Score104Shelves
- 69 National Fate: Horror Only Wants the Peace Route 国运：horror只想要和平线 Horror had finally found a peaceful ending, only to have a mysterious creator steal their memories and throw them into the National Destiny game. [A few things to know before reading: This is my first time writing a novel. It’s purely for fun. Any AUs are my own versions. It’s especially chaotic. The National Destiny game includes identity reveals, memory loss, watching scenes, and summoning people. The writing is at a pure elementary-school level. Updates are whenever I feel like it.] 9Reads—Score—Shelves
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70
A Diary of Life in Undertale 人在传说之下的生活日记
My name is Bai Mo. I just arrived in Undertale, and I am freaking out. What the heck, X Gaster? Good grief, the Four Sanses? And now a Soul Crystal? You're all so powerful, what am I supposed to do? Whatever, I'll just slack off! (No angst in the whole story)
159Reads—Score—Shelves
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- 71 Undertale: Infection and Redemption 传说之下：感染与救赎 (Adapted from Plague Inc. and Undertale: Infection and Redemption) The end of the pacifist route, the beginning of a new life. Interests clash, and even the innocent are not entirely innocent. The epidemic strikes again. Who can stay out of it? With lives on the line, who harbors ulterior motives? "Some things can't be explained by science, just like monsters." Let it all be a long dream. A friend passes away, how tragic. The savior's sigh, how despairing. Why not take this chance to meet once m 35Reads—Score—Shelves
- 72 I Am Chara, and I'm Not 我是chara，也不是 Special events, original worldbuilding, a pairing, very sweet with a touch of angst (the protagonist just dies a few times, that’s all). Also known as: Wayward Heart Once this drug takes root in a person’s heart, it is “impossible” to undo. No one can quit. The prophecy begins: a new soul will save the world. This is simply a moving story about how, amid endless despair and chaos, two lonely souls find each other, heal each other, and ultimately discover that “love” is real, transcending both co 251Reads—Score—Shelves
- 73 A Legend of Fear, Karma, and Retribution 恐惧传说因果业报 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.) 180Reads—Score—Shelves
- 74 Searching for Redemption in the AU 在AU中寻找救赎 Murder succeeded. They uninstalled the game and gave up on the endless chase, leaving him in a world covered in dust. “They still haven’t come.” The skeleton in front of the Ruins gate muttered to himself. “Don’t lose heart, buddy! Isn’t this a good thing? You won’t have to watch ‘me’ get killed by them anymore. The whole Underground is empty now, except for you, you filthy brother-killer.” That’s right. There was no one left in the entire Underground... At least, that’s what Murder t 112Reads—Score—Shelves
- 75 Undertale: The Slaughter Cycle 传说之下：杀戮轮回 (AU setting changed.) After staying up all night and suddenly dying, Lin Fan transmigrates into the Underfell fan game he designed, Underfell: Kill or Be Killed. Facing the mad monsters he created, Lin Fan's only way out is to follow the game's route and leave the Underground... 55Reads—Score—Shelves
- 76 UT: Deviation ut：偏差 [Undertale derivative + heavily altered setting + OOC + Nightmare gets put through the wringer + no romance in the main story, I love platonic pairings!] If everything deviated from how it was supposed to be, if everything changed, I think I’d say that we are not redeemed, we are not forgiven, and we don’t need the judgment of bystanders, because we are simply ourselves. (This blurb is a mess, don’t mind it.) This story came from the author’s frustration with the original Dreamtale setting and 256Reads—Score—Shelves
- 77 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. 30Reads—Score—Shelves
- 78 Undertale: Blossoms That Never Fall 传说之下：永不飘落的繁花 (No CP + SF + HE + Upholding RightE = ?) In 201x, at Mount Ebott, Crow heard that no humans who went there had ever returned. So, with a missing-person flyer in hand and a bow on her back, she went to investigate. She saw Frisk trip over a vine and fall into a deep pit, so Crow jumped in after her. After freeing the Underground, Crow thought she had reached the end. But with Flowey’s prompting, she found Gaster and struck a deal with him… She would go uphold justice and grow stronger, while Gast 24Reads—Score—Shelves
- 79 Dusttale: Old Sans and Old Chara’s Multiverse Journey 尘埃传说：老衫和老猹的多元之旅 Chara committed suicide, and Sans gained free will and then committed suicide too. What happened to them? Whatever the case, they transmigrated... Every bit of this was all just a game... 30Reads—Score—Shelves
- 80 Nightmare Is Busy Again Today Nightmare今天也在忙碌 Updates are irregular for now, with each update being at least 1,000 words. Also, the author is terrible at coming up with names, so the chapters won't have titles. (All right, really, I just want to be lazy.) Please don't blame me if my writing isn't very good. (I did warn you in the title, after all.) The characters might be OOC at times. I'll try to stick as close to the original characterization as I can, but I'm not their mom, so they might not always be completely in character. Also, if so 88Reads—Score—Shelves
- 81 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
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82
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
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- 83 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. 5Reads—Score—Shelves
- 84 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
- 85 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
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86
Honkai Impact 3rd: Herrscher of Bone 崩坏三，骨之律者
Also known as I, the Judgment of Collapse. This is very much a slice-of-life story, with possibly no angst, and either no heroine or a harem. The author aims to create a complete world where even supporting characters have names of their own, even if they only appear briefly. The story is mostly told in the third person. Harem or single male lead, with angst in the middle and later parts.
38Reads—Score—Shelves
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- 87 Transmigrated into Zenless Zone Zero, I'm a Lazybones 穿绝区零，我是懒骨头 Feel free to point out anything you don't like. This is my first time writing, so I hope you'll support me! The story revolves around Sans as the protagonist. As for the heroine... we'll see how I write her later. (Shrugs.) Well, the protagonist isn't actually Sans, and is in a sense my own original character. —Reads—Score—Shelves
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88
Undertale: She’s Not the Protagonist 传说之下：她不是主角
[Transmigration] [No Romance] [Ensemble Cast] [Everyone Is Strong] [A Little Golden Finger System, Redemption, and Wild Ideas] [Antagonist] [Slow-Paced and Lighthearted at First, Then a Transitional Middle] [Happy Ending] A lot of UT players transmigrated into this UT multiverse, a place that seemed peaceful on the surface but was actually rife with undercurrents... Narrator: *Among the people working to protect the peace of the universe, there is a hidden killer with the employee number 103. At
83Reads—Score—Shelves
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