Kenneth, a summoner from earth. In the post-apocalyse, the earth has been invaded by monsters. The sudden existence of the dungeon causes death and destruction everywhere.

Now not only were monsters dangerous, humans weren't trustworthy subjects either. Betrayed by his companion and lover, that's how the naive Kenneth lived before.

With the determination to take revenge, he summoned you from another world.

"Little girl, tell me what you are used for."