Aki Maeda

Young Haru rescues a cat from being run over, but soon learns it's no ordinary feline; it happens to be the Prince of the Cats.

Amon is a boy who can control the wind. Branik, ruler of the Empire of the Golden Snake, wants Amon's power to complete the ultimate weapon and sends his troops to capture the boy. ...

In the future, the Japanese government captures a class of ninth-grade students and forces them to kill each other under the revolutionary "Battle Royale" act.