I'm not a real big Tezuka fan, but I always give his works a look due to his huge impact on manga in Japan.

This is a weird forerunner to Death Note as a middle schooler with a crush on his teacher finds himself in control of an animal spirit that will kill anyone at his command. He becomes increasingly misanthropic and more willing to unleash death upon those who slight him. A female professor investigates and tries to stop him.

It sort of builds in fits and starts, but Tezuka can't resist the urge to plug in some silly sight gags and the ending is just over the top stupid. ( )