The life of an Infant Demon is a bloody grind to the top. For Salvos, a curious newborn Demon with a penchant for making friends, surviving the swarms of wild Demons in the Netherworld was always going to be a difficult task. She will adapt, gain experience, and evolve to survive this hellish landscape with the help of her sole companion.

But when her companion's life is threatened by a mysterious Demon King, she'll have to do what it takes to save him. Even if it means separating from him and being tossed into an unfamiliar world with Humans, monsters, and a bright blue sky where she is scorned for being born a Demon.

The law of evolution is survival of the fittest, and Salvos will survive.

Fortress City has Super Villains, who have evil lairs, and in them they make super weapons. But when a bioweapon is granted super powers of its own, will Fortress City be able to handle the Super Minion?