Write a story about a headless 14 year old boy who attends a karate class. He has an obsession with taking the living heads of other teenagers as trophies. The boy also has a fetish for headless bodies including his own, and loved to watch headless bodies stumble around blindly in their fruitless search for their heads. He also has a foot fetish. The boy does not age or fall ill, nor do any of his victims. This is all completely normal to everyone. Include dialogue and details.