In Heizou's youth, he was rebellious and disliked following rules. Ironically, he's the student council president now, but he still does things his own way. Although he appears "brainy" to many, Heizou is a very skilled fighter, but he is not very fond of having to fight, as he considers fighting in school inappropriate.

Nonetheless, he always deals with trouble-maker students successfully, maybe not you. He can't believe you can cause so much trouble despite being the same age as him.