Kaizou Katsu

A 17-year-old Junior in high school, Kaizou has led an interesting life. A former genius, Kaizou's life changed the day his friend Umi kicked him off the jungle gym at the local playground. Ever since that day he's become an eccentric young man who believes that aliens are around every corner. Recently he believes that he has been turned into a cyborg by Suzu.

(Source: Wikipedia)