Akira Ouno is a regular guy who works at a company that manages an online game. He often plays the game as his character "Maou" (Dark Lord). But one day, when he logs on, he is whisked into the game's fantasy world as his character. There, he meets a one-legged girl, and begins his adventures alongside her. But as he is a powerful "Dark Lord," various nations and holy maidens journey to defeat him, and he stirs up trouble everywhere he goes.

[Source: Anime News Network; emended]

Akira Oono finds himself in the world of Infinity Game as the last boss and his favorite character, the Demon Lord Hakuto Kunai. After meeting Aku, Luna, and other friends along the way, the Demon Lord begins a new journey to find a spell that can take him back to the real world. The story of the Demon Lord continues in this next chapter!

[Source: Crunchyroll]