Despite being a bloodthirsty and potentially very dangerous serial killer, Genocide Jack is mostly portrayed as comic relief in the Danganronpa series. She laughs a lot and sometimes pretends to be serious only to reveal that she is just joking. Unlike Toko, Genocide Jack is very loud and outgoing. During Chihiro Fujisaki's murder trial she reveals everything about herself. She obsesses over Byakuya Togami, calling him "Master" in the English version.