Daisuke Hiyama

Overview
Hiyama is the leader of the bullies harassing Hajime. Perpetrator who dropped him into the abyss. Blackmailed by Eri in the beginning, but later killed many of the country's knights and soldiers of his own volition in order to obtain Kaori. He met a gruesome end when Hajime fed him alive to some monsters after finally going to town on him.

Trivia

 * Despite his personality, he is yandere.