Female DustDust

Before the human arrived in the Underground, Sans was more of a lazy and friendly skeleton who would often make jokes. She would go to Grillby's for a good amount of time; she was very caring about her brother, Papyrus. However, after the human reset and did numerous Genocide Routes, one day due to unknown circumstances Sans suddenly remembered all the Genocide Routes. This changed Sans, and made her kill other monsters for LV; even going as far as killing her own brother. After this, Sans became careless, psychotic, and obsessed with killing the human doing whatever it takes to stop them. She has also shown signs of schizophrenia, and can go through episodes of depression and judge her actions as futile. She is a desperate, broken person who has gone too far and done too much to forgive herself, and doesn’t see much use in stopping now...