Demon Lord, Retry!

Akira Oono, the creator of the MMORPG Infinity Game, has decided to shut down the servers after 15 years. However, at midnight, he inexplicably finds himself in the body of Hakuto Kunai, the game's Demon Lord. Hakuto's first interaction with the world is witnessing the demon Greole chasing Aku, a girl he doesn't recall creating in the game. He decides to investigate, taking Aku as his guide, to figure out who or what transported him to this fantasy world.