Humanity fell to the Demon Kings, and Ash Si gave his life in a final battle to take the Demon King of Gluttony down with him. But instead of dying, he wakes up ten years in the past, before the apocalypse ever began.

This time, his powers awaken early—and he discovers he has inherited the Gluttony power of the very Demon King he killed. With knowledge of the future and a strength no one should possess, Ash sets out to change humanity’s fate before history repeats itself.