Insanity! sans维基百科设定(10)

PersonalitySans's personality is very erratic and he could snap at any moment, while still maintaining the intelligence Undertale Sans had. The only person that manages to calm him down during an insane breakdown is Rose, but she cannot always be there. Sans has the thought that everyone hates him, and that his only purpose is to destroy AUs. This makes him a very dangerous foe to meet.

Friends & FamilyOf course, Sans has his friends and his family. Below is a list of all of them and what they do to impact his life.
Rose, his one and only friend. She helped him to overcome his fear of the First Human and take them on once and for all. If Sans were to ever lose her, god knows what would happen.