Kojima

A short boy who's in Takaya's class, and the first one (other than Takaya) to find out about Lilim. At one point in the story, Lilim has a disagreement with Takaya and stays with Kojima for a while. In that amount of time, Kojima teaches her to write. Unlike the all the other boys at his school (save Takaya), common sense overrules his infatuation with Lilim. He becomes briefly infatuated with the lilim only known as 'Sempai', however, after she gives him his first (French) kiss and steals his lifeforce. Due to this infatuation, he attempts to summon a lilim demon through a magical ritual, but actually conjures the wyvern that will later become Pyu-chan. Even before the events in this story, he has been a bit of an occult fan, due to which he becomes Takaya's main source of information about lilim and the occult in general.