Akira Oono, a game developer, plans to shut down his MMORPG Infinity Game but at midnight, he wakes up in the body of Hakuto Kunai, the game’s Demon Lord. When he saves a mysterious girl named Aku from a demon, Hakuto realizes he doesn’t remember creating either her or the monster. Determined to uncover who summoned him to this world, he embarks on a journey with Aku, leaving chaos in his wake.