This is about the anime characters. For the monster itself, see Fly Eye.
A group of adolescent Fly Eyes appear in the anime series.
The Fly Eyes (led by one with a few scars on his head) bully a younger Furred Suezo into giving up his monster trading cards until Suezo steps in and stops them. They remind him of a group of Red Eyes that used to pick on him as a child. Unfortunately, after he stands up to the younger group, they go and get one of they very large friends, and Suezo has to decide whether getting hurt is worth it to teach Furred Suezo not to run away.