Lucifer, the strongest Demon king has ruled the demon race with his overwhelming power.... more>>

Making a Harem with his dearest wife, he spent several hundred years eating, making love, and sleeping.

Tired of sleeping, the Demon King began to seek a powerful enemy.

Why doesn’t the hero come to subdue him? Even though he’s been waiting for so long.

Lucifer then turned himself into a human and decided to go and see the military academy, which is a training institution for the heroes.

The best way to know what’s inside is to enroll in the school.

He quickly passed the entrance exam and enrolled safely…!?

This is the story of the most powerful demon king who becomes the strongest hero by mistake. <<less

Take part-time jobs, reduce food expense, sacrifice youth, he continues to whale. Using the game as his only weapon, he, Aikawa Tooru fight against loneliness... more>> and boredom. On his way back from one of his part-time job he saved a girl from a recklessly running bus and died just like that. The next time he opened his eyes, somehow he ended up in another world, as one of his characters, Nacht. But that character was created during his dark age, fuelled with eight-grade syndrome desire and passion. This is the story of Tooru's next life as Nacht. <<less