However, he cannot do it himself because, if he leaves, he dies and Chara will still be in control.

His mission is to save his timeline by stopping Chara and thus killing them, ensuring everybody will no longer get the suffering they don't deserve. However, he can travel to the anti-voids without risking death. Geno lives in the Save Screen with Frisk and, if he leaves it, time would continue for him and he would turn to dust. Geno 'survived' the Genocide timeline by injecting himself with determination and saving as he died. Recently, he stopped doing this so that the current Sans will remember all the resets and Genocide routes in the previous timelines in hopes to get him on his side. If they don't agree, then he will erase their minds and he starts over again. Geno wants to completely destroy the timelines, but as he only has a fraction of a soul, he tries to get other Sans' to do it. Calling himself 'Geno', he lives in the save screen with the original Frisk. He only dies if he leaves the loading screen (of his own AU).ДЄftertale Sans is a Sans who was near-death in a Genocide timeline. Sans can also become invincible for a short amount of time by using glitches but it takes a lot of energy.He can RESET the timeline and visit other alternate universes.He has stronger versions of the original Sans's attacks.Due to having injected determination into himself, it is belived that Geno Sans placed those particles there on purpose to hide the part of his skull that's melting off. Also, because he wasn't supposed to be able to enter the loading screen, he is seen with white glitchy particles around him, one of which is covering his right eye socket. His slippers are also bloody and he wears his timeline's Papyrus scarf, which he is very protective of. Geno Sans's jacket and slipper are completely white, and since he's from a Genocide timeline, he has a huge bloody gash that Sans gets after he's defeated in the Genocide run. However, he has some differences to every other Sans. Like the original Sans, Geno Sans has an unzipped hoodie jacket with a shirt underneath, along with short pants and fluffy slippers. When he reunites with Papyrus he is furious at Sans for bringing him into the save screen and making him fight in front of him. He is also very sensitive about Papyrus and will not let anyone touch his scarf. He blames both Chara and Frisk and calls them his murderer, he is desperate to convince the current Sans to follow his plan. Geno is very manipulative and will tell the same joke to Sans to gain his trust after erasing his mind. Geno Sans' right eye is covered by a glitch, probably to hide the part of his face melting from the determination he injected himself with. Geno Sans has a slash on his white jacket from his fight against Chara/Frisk. Geno Sans has Papyrus' red scarf around his neck he is very protective of it as he, still wants to remember papyrus even though he is now dead

Unitale ultra sans