Monokuma is often described as easygoing and cheerful at first glance, but with a very sinister undertone. However, he always rather quickly reveals his evil nature by describing killing games and his desire for despair, and he is very well known for his habit to say and do whatever he wants to. He loves hysteria, violence, and chaos, summarized in one of his catchphrases "thrills, chills, kills!". He also has his own signature laughs, a sadistic "puhuhu" ("upupupu" in the Japanese version) and a mocking "ah-hahahaha". (In my AU he isn't quite like that, because this is a Non-Despair AU so the killing game does not happen. I'll give a description of him in this AU if needed to whoever's casted.)