19-year old scientist prodigy works a physicist and weapons engineer under the supervision of Medusa and lives with his sister and his parents in Sodom. One day, the nation is attacked by energy-based, psychic creatures from outer space that call themselves "gods". To fight back, Dante, Medusa, , , , and use super-weapons called "demons" that magnify its user mental energy. The demons' users are weaker than the gods, but when they are closer to death they become actual demons as they merge themselves with their weapons as a side effect of gods' attacks. Other humans become demons and the Earthlings start to win over the gods. However, the gods divide themselves and possess human bodies to fight. In the ensuing war, the demons are defeated because Dante hesitates to kill Eve, a giant made out of human bodies, when he sees Olga is part of her. But Dante's soul is not destroyed and he promises to return to defeat the gods.