In this world, people live alongside half-breeds and beasts. Kannaduki Eitarou is a handyman, single, and only has one family member: his little brother, Mikage. They are both half-breeds (human and wolf) but where he seems to have no unusual traits, Mikage is a different story. He has wolf ears and a tail, and if the moon is full, he falls unconscious and transforms fully into a giant wolf. He won't remember anything from that time though. It seems Eitarou's days are consistently riddled with problems!

Koutenken's upper body is finally that of a human's except for the ear and tail. Now he swears he's going to get it on with Youzen...

A four-panel format comic (yoncoma manga) based on the "characters" she illustrated for Jinrou Blood (a card game known as Werewolf in the West). The story revolves around the two werewolf characters attending a regular school and various students, teachers and facility gradually go missing (are eaten).