School — Cromartie High

The protagonist. A "normal" kid who inadvertently becomes the toughest guy in school by applying simple logic to absurd situations.

Produced by Production I.G, consisting of 26 short-form episodes (approx. 10 minutes each) aired between 2003 and 2004 Cromartie High School

A silent, muscular man who looks exactly like Freddie Mercury. He frequently rides a giant horse to school and never speaks. The protagonist

Serialized in Weekly Shōnen Magazine from 2000 to 2006 10 minutes each) aired between 2003 and 2004

The series is defined by its bizarre cast, many of whom are accepted as "normal" students despite being anything but:

A literal gorilla that attends classes. Most characters ignore the fact that he is an animal, though he is often more competent than the human students.

A student who is clearly a small, tin-can-shaped robot. Only Kamiyama seems to notice he isn't human; the others just think he has a "tough" voice.