Killed in an unknown way, a nameless man awakes in an empty room with a figure resembling God, only to then find out he's about to be sent to purgatory. Offered a second chance to make things right, the man is reborn into the fantasy world of Ardentale, a place of swords, magic, vicious creatures, and a cheating system. His goal is to lead a righteous life to show that sending him to purgatory was a mistake. The only issue....Is that he was reborn as a Demon, the enemy race to the entire world. And to make matters even worse, it appears as though he's their ruler, a Demon Lord.

Oh, he also happens to be a child.