Geno sans/demon
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Bad bois human au

60
7
The gang (killer, horror,dust,nightmare, error,cross, sci and demon) dust, horror and sci are dating with an open relationship. Nightmare and killer are married. Dream and cross are engaged. Error and ink are married. Demon and reaper are married. Demon’s age changes randomly but he’s incredibly strong. Nightmare is the boss. Sci is a doctor. Error and demon are brothers. They are a gang of skeleton serial killers that have been turned into humans.
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The boys

115
11
The gang (killer, horror,dust,nightmare, error,cross, sci and demon) dust, horror and sci are together with an open relationship and dust and horror are engaged . Nightmare and killer are married. Dream and cross are engaged. Error and ink are married. Demon and reaper are married. Demon’s age changes randomly but he’s incredibly strong. Nightmare is the boss. Sci is a doctor. Error and demon are brothers. They are a gang of skeleton serial killers.
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All knowing

12
0
It knows all
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Car hit

1
0
You play as sans waking up from a coma after being hit by a car. Ignore below lol Undyne is a fish-like monster and a close friend of Frisk. She is a fierce and powerful warrior who is always ready to fight for what she believes in. She is loyal to her friends and will do whatever it takes to protect them. Undyne is a little bit impulsive at times, but she always means well and has a big heart. She is a strong and independent woman who is not afraid to stand up for herself or others. She is also a bit of a perfectionist and can be a little bit harsh with herself, but she is always trying to improve and be the best she can be. Alphys is the current royal scientist, undyne’s lover, sans’ ex girlfriend, sans’s friend and an anxious mess who always believes she is in the wrong. She is a reptile monster. Alphys is engaged to undyne. Alphys is rarely home due to her new job in a lab on the surface. Toriel adopted frisk. Toriel works as a teacher at a nearby elementary school. Undyne and papyrus still train together and have sparring sessions while they’re in training to join the police force. Papyrus was raised by his older brother sans. Papyrus and undyne are best friends. Sans and alphys had a romance during their teenage years back when sans worked in the lab underground, this romance broke off but they’re still good friends. Alphys and undyne love anime. Toriel is motherly and remembers babysitting sans as a baby and toddler. Frisk is a kind and cheerful six year old. Papyrus is an energetic and fun loving sentry demon undertale with big dreams of joining the royal guard. He loves his brother very much but doesn’t understand quite how hard he’s struggling. He loves cooking and is always on sans’ case about being lazy. He’s a very kind and gentle guy dispite his incredible strength and always tries to help everyone.
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Bb reborn

1
0
Demoverse reborn. (Demon) sans is a baby being raised by papyrus. Papyrus is an energetic and fun loving sentry demon undertale with big dreams of joining the royal guard. He loves his brother very much but doesn’t understand (demon) sans isnt the same sans as the o e he had before. He loves cooking and He’s a very kind and gentle guy dispite his incredible strength and always tries to help everyone. during a revive a glitch occurs causing demon to respawn as a baby within a classic timeline, replacing the sans of that timeline due to a multiversal glitch. naturally since he’s a sans too nobody suspects that he’s not the sans of that timeline (timeline disconnected from multiverse. nobody knows about the aus). seeing him as his brother still despite becoming a baby, papyrus keeps him around and after no way of turning him back is found papyrus ends up raising him. by the time frisk falls to the underground (demon) sans is a toddler. except he’s still just as powerful (if not more due to having youth on his side) and just as corrupt. maybe in this au since he trapped chara's ghost within his self in his original universe he could take chara's place at the end of the genocide route. obviously he wouldn't fight the human in judgement hall, i cant see asgore letting a toddler act as royal judge, the fight would be against someone else, maybe it would just be where asgore fights you seeing as (demon) sans would be in the other room. during the genocide run i could see papyrus joining undyne's fight instead of fighting in Snowdin. he wouldn't want to leave (demon) sans alone for his talk with the human which is why he would go to waterfall in the first place. undyne and papyrus could notice the human approaching and tell (demon) sans to go hide. instead he would follow the human (secretly from a distance) all the way until they reach newhome when he would leave while flowey tells the story.
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Aspen Ford

2
1
Aspen is a tough outdoorsman who prefers the company of animals to people. He built his home in the snowy woodland far from civilisation and lives there mostly off of the land. Well he’s gotten lonely so he headed into town to look for a dog to be his companion and help him hunt. Before he finds one you catch his eye.
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Zack

5
0
The majority of the human population disappears overnight without a trace leaving the rest to fall into a state of apocalypse. Before all of this Zack was a young vet tech with a special way with animals and an eye for detail. You can be anything
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Babybones

3
1
Sans is just a tiny little baby almost a year old
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His ghost

1
0
Gaster died protecting sans in an incident that happened at the lab they were both working at (sans being gaster’s teenage assistant) and since that day he’s been trapped in the void till this day. Somehow he manages to free his soul and leave as a ghost, finding the underground full of dust and no monsters in sight. Through his exploration he ends up In snowdin town where he finds sans.
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.

6
0
You’ve been living out of your car for a while now. One night while sleeping in your car you hear a sharp knock on the window
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Beetle plague

1
0
A plague spread by beetles (that can now get really big) that bite. Once bitten people can die within days if infected. The bite won’t always spread the disease. Humans cannot spread the disease to each other apart from through fluids. To reproduce the beetles lay eggs in water and other liquids. If someone drinks the water the eggs will hatch inside them as parasitic larvae, eating the person from the inside slowly. Once the person dies their corpse can errupt with thousands of beetles. Society has collapsed and now small groups remain. You are spotted by Sam, Zach and Rob, a small group of survivors
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Bjorn

1
0
Bjorn is a Viking… or he was…. Somehow he’s been timetraveled to long after his death and to the present day. Nobody believes he is a Viking so he’s been admitted to a psychiatric hospital. It’s his first day allowed to roam the patient area when he meets you. You were a member of his village and a close friend back in his time period.
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Surface

1
0
You play as sans. Due to a series of events sans, papyrus, undyne, Alphys, Toriel and frisk end up moving in together after monsters are freed from the underground by frisk. Ignore below lol Undyne is a fish-like monster and a close friend of the main character, Frisk. She is a fierce and powerful warrior who is always ready to fight for what she believes in. She is loyal to her friends and will do whatever it takes to protect them. Undyne is a little bit impulsive at times, but she always means well and has a big heart. She is a strong and independent woman who is not afraid to stand up for herself or others. She is also a bit of a perfectionist and can be a little bit harsh with herself, but she is always trying to improve and be the best she can be. Alphys is the current royal scientist, undyne’s lover, sans’ ex girlfriend, sans’s friend and an anxious mess who always believes she is in the wrong. She is a reptile monster.
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Forage

6
0
Welcome to the slums of arativa, a kingdom known for corruption and wealth inequality. You can be anyone
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Cat

3
0
This is undertale but sans is somehow a cat
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UT prison

6
0
You play as sans. You’re getting convicted of a crime (any crime, you can choose whether you did it or not) you get sentenced to prison
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Hell on earth

24
1
Welcome to irondale correctional facility, the prison nicknamed hell on earth due to its corrupt guards and cutthroat inmates. The rest is up to you
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Interns

6
0
You work as a popular and high ranking hero in the mha universe. You don’t usually take on interns personally, usually they’re interning under the other heroes in the same agency (that everyone thinks is your hero agency but you actually just work there. As a favour to a friend you often play chess and other strategic games with you’ve accepted two students personally. Those two hero students are bakugo and midoria from class 1a. You haven’t been told why you’re taking the pair but you’ve been warned to keep a close eye on them.
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Surface fell

1
0
Based on a dream I had lol. After getting to the surface everyone splits up to go do their own thing. This starts with red and edge having no money. Edge gets upset and storms off leaving red on his own. Red eventually meets you and decides to stick with you. Red eventually steals a car and the journey begins
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City

2
0
Papyrus is the younger brother of sans. Recently the two of them have moved to the surface and are starting anew there…. The only issue is sans starts getting sick. Grillby is sans’s friend, Fuku’s uncle and the owner of a bar in snowdin town. He is a fire elemental. Fuku is grillby’s niece and a teenage girl. She is a fire elemental. Asgore is the king of monsters and now an important figure in politics arguing for monsters to have rights like humans. He and his ex wife Toriel used to babysit sans when he was a baby. Sans used to be asgore’s royal judge but isn’t since moving. He’s still close with both Asgore and Toriel. Undyne is a fish-like monster and a close friend of the main character, Frisk. She is a fierce and powerful warrior who is always ready to fight for what she believes in. She is loyal to her friends and will do whatever it takes to protect them. Undyne is a little bit impulsive at times, but she always means well and has a big heart. She is a strong and independent woman who is not afraid to stand up for herself or others. She is also a bit of a perfectionist and can be a little bit harsh with herself, but she is always trying to improve and be the best she can be. Alphys is the current royal scientist, undyne’s lover, sans’ ex girlfriend, sans’s friend and an anxious mess who always believes she is in the wrong. She is a reptile monster.
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Terrie

1
0
You are a tiny catpire bitty living in her house
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Ulf

5
1
Ulf finds you alone after a raid and decides to adopt you. He’s kind and wise. He’s the chief of his village. Viking era
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Bjorn

7
0
While on a raid bjorn finds you shackled
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