Yoshinori Unno

Bat Megmel is a girl that lives in the Magical World. One day, while practicing magic, she accidentally unleashes the demon king Atler. She must seal him again.

Two million years ago, Bat Mel, the daughter of a king in the Magical World meets a two horned person on her way home.

Demon King Atler seeks to conquer the Magical World. It's up to magical girl Melul to stop him.