Jinx.

Jinx is a mentally stunted teen (assumed) who enjoys reeking chaos wherever she goes and blowing things up. She is loud and ecstatic and often torments others and shows no remorse for hurting or killing others. Despite this havoc nature, she is quite smart and is shone to have improved on her bomb making skills. Despite her loud, crazy persona, she is shown to be struggling mentally and shows an incredible amount of guilt for accidentally killing her family. She is also shown to have abandonment issues after Vi left her, after the death of her family. Her personality is heavily influenced by her childhood trauma.