M87 Sans's AU started as a very dense point in the multiverse. It was so dense it had caused a black hole to form, eating other AUs. The black hole somehow defied its own physics and created a small planet. It had no effect on the planet, thus leaving the planet immune. One day, an unknown AU hopper found the barren wasteland and decided to find an AU and take some of its components and put them into the code of the planet, but the one thing that confused the AU hopper was that it could not affect the black hole in any way. the AU hopper was confounded, so it decided to go near the black-hole itself but was sucked in and never came back out. 10000 years later... The unknown AU hopper has been revealed as M87 Sans. He has been learning how to escape this black hole he calls home. 3 years after being trapped... M87 Sans has figured out how to escape. He is currently testing to see if his method of escaping is even possible. 1 year later... M87 Sans's idea worked and he is out of the black hole. When he tried to escape, most of the black hole's power was transferred into him. He is currently roaming the planet he had helped to create. 1 month after escaping... M87 Sans has gotten used to living in his world known as "87Tale". Most of his creations have gotten used to him as well. 2 years after world creation... Everything had been going good, until a random genocidal monster had come to his AU. (soon to be finished)
Sometimes, M87 Sans would run into other AUs while hopping most of the time. When confronted, he either runs away or somehow gets into a conversation with them. Most of the time he would run into Error, this is due to Error thinking his universe is one of the biggest mistakes yet and wanting to kill M87 most of the time. M87 gets away but other times he's not so lucky and gets into a fight. He would often lose, but due to Error not being able to destroy M87s code directly, M87 often is spared. M87 has run into Nightmare and the gang but he often overpowers all the other members except NM. NM has tried countless times to get M87 on his side but M87 doesn't accept. Sometimes NM would lose to M87 because of his NULL attack. NM would also sometimes get scared due to M87´s seriousness. M87 Sans had ran into Geno once. M87 somehow got into Geno´s save screen. Geno was confused. "Who is this Sans?" Geno thought. As Geno kept thinking ,M87 had walked towards Geno. He startled, and then started attacking. M87 dodged all the attacks. M87 shot a bone at Geno´s foot. It had managed to hit him. Geno realized that this ¨newcomer¨ was strong. He had stopped attacking. Geno and M87 started talking. Geno had learned what happened to him and what he´s done. Before M87 left, Geno had asked if M87 could come back later. M87 Sans had run into Ink a few times while destroying a broken AU. Due to Ink having to protect AUs, M87 Sans was kinda his enemy. Ink saw M87 about to destroy it. Seeing this, he attacked him. M87 dodged. Ink surprise-jumped at him again to attack, but M87 dodged again. M87 shot a bone and hit Ink in the foot, but Ink didn't even see what happened. M87 had spawned a bone in his hand, ran towards ink behind him. sent Ink flying in the air, tired, M87 teleported above him and smashed him into the ground. Ink even more tired now decided it was good to leave. Ink left, and M87 continued deleting th M87 had about 2 run-ins with Error, Ink had told Error about him and Error wanted to find him. M87 was erasing another AU from existence at that moment when Error popped up and tried to grab him with strings, M87 had dodged again. Error, surprised blinked and M87 was in-front of him, due to Error´s phobia of being touched he jumped back and tried to string M87 up again. M87 like always, dodged it. Error tired of this s*** left and M87 continued once more to finish destroying the AU. Later* Error was angry for not being able to kill M87, Error wanted to go back. As Error came through his portal M87 was gone, Error looked through many AUs, he even went through AUs that had no further presence. Error couldn't find him. This is when Error had a strange feeling from a very far away source, Error opened a portal and checked it out. Error, in-front of him saw a gaping hole in space, Error was slowly being sucked in till he saw a small planet. Error teleported to it and the gravitational pull stopped. Error, relieved, walked through this planet seeing many people and things. He continued to walk until he saw M87 writing in a notebook. Error teleported over and try'd to hit him, M87 was bothered and got up. M87 hit Error with a bone and knocked him a few feet away. Error grabbed M87 with his strings and yanked him near and hit him to the point he went 10' into the ground. M87 got up and teleported Error amd him inside the black-hole. Error couldn't use any of his strings or code attacks. He was powerless, M87 teleported behind him and shot him up into the darkness that was nothing. M87 then used one of his blasters and pulled Error back to the ground, when Error was about to hit the blaster he had gotten launched hundreds of feet away into a wall of bones, Error was midly injured, but now he was warmed up. Error quickly teleported behind M87, M87 turned around and tried to hit Error, Error grabbed the bone and threw it. (soon to be finished)