Originally a shut-in gamer who went by the name "Diablo" in the MMO "Cross Reverie." Having spent hours playing, he could defeat any player using his superior equipment and overwhelming skill. After being summoned one day to another world where he had the body of his in-game character, he finds himself the owner of two girls, a Pantherian and an elf, due to their invocation magic reflecting back at them due to an item of his.