Katashiro Hijiri

Friend of the main character. He is the only son of Misao. He is a bit shy, but he has a bright and kind heart, and is innocent and has no doubts about others.

Compared to other men of his age, even he beats out the protagonist in looking younger. He is true virgin boy.

He is disciplined daily and pressured to do his best in his studies. He knows in his head that this is for his own good, but the stress is starting to get to him.