Mitsume ga Tooru

Sharaku is a descendant of an ancient race of three eyed humans who once ruled the world in the old days with superior technology and intelligence. Sharaku is very intelligent, but also very evil. If his third eye is covered, he becomes a very likeable, nice, clueless little kid. Wato is the daughter of a local priest and is in love with the evil, powerful side of Sharaku. The evil Sharaku is in love with her and acts as her protector, but when his third eye is covered, Wato has to protect him and act as his mother.