A story about a boy who notices a falling object one night and comes across an half-human half- butterfly alien.The boy takes the creature to his home and keeps it as his "property",slowly growing to care about it after mistreating it at first.This manga becomes increasingly weird,especially because of the sexualized appearance that the hybrid has,although looking like an 8 years old girl and the fact that she mates with humans and lays hundreds of eggs.