Female Aftertale Sans

Geno is very manipulative and will continue to manipulate Sans to gain her trust after erasing her mind over and over until she finally gets herway.

She blames both Chara and Frisk for the genocide runs and calls them "her murderer". She is desperate to convince the current Sans to follow her plan, even if she has to use force.

She is also very sensitive about Papyrus and will not let anyone touch her scarf. When Sans brings Papyrus with her on her visit to the Save screen, Geno becomes furious.

While she can be quite violent, she still has a sense of humour, and her first reaction to seeing Sans is to make puns.

Geno's personality changes seem to be due to her not having a full soul, making her violent..