How Not to Summon a Demon Lord

In the MMORPG Cross Reverie, Sakamoto Takuma's sheer prowess earns him the title of the 'demon lord' among his fellow players. One day he is summoned to a parallel world in his avatar, where two girls each insist they are the one who summoned him. They cast a ritual designed to bind summoned beasts to a master, but it activates his unique Magic Reflect ability, turning the spell back on them and leaving the two girls under its sway. Thus unfolds the otherworldly odyssey of a pretend demon lord who forges his own path through overwhelming power.