How NOT to Summon a Demon Lord

How NOT to Summon a Demon Lord follows Takuma Sakamoto, an overwhelmingly powerful Cross Reverie player known in the game as the Demon Lord. One day he is summoned into another world in the form of his game character. Two girls claim to have summoned him and attempt an Enslavement Ritual, but Takuma's passive ability reverses the effect onto them. Although his magical strength carries over, his ability to interact with people does not. Unable to communicate comfortably as himself, Takuma adopts the imposing personality of his in-game identity, Diablo.