╗ Shin Megamitensei Devil children
One day Setsuna, a young orphan is visited by a messenger from the Devil's world. The messenger tells him that the abnormal climate that has been appearing the last few years (earthquakes, storms, ...) are the work of the Devil. All these strange phenomena will eventually destroy Earth unless the Devil is defeated by the Devil children. Setsuna appears to be one of these "Devil Children" and agrees to follow the messenger to the Devil's world to fight the Devil. His rival Mirai joins him and they set forth to a journey to fight Devils and Demons.