Youji Sakiyama

Sakiyama is the main character, a high school student who lives by himself in a small flat. His parents died in a car accident when he was a kid, leaving him and his older sister. Youji is a quite shy guy, being quite and aloof. He's almost invisible in class, has no friends to talk to and he suffers from a weak body which makes him sometimes faint in school. He lives by himself, but does have the best big sister ever. He is not human, does not like eating, but has a liking to fish.