Judgement Day came unexpectedly. Billions of humans were slaughtered by demons, and their race was brought to the brink of extinction. Struggle after struggle, Chase Marcus honed his strength with a single-minded focus. Eventually, he succeeded in killing the Ruler of the Seventh Realm.

On the verge of death, a mysterious individual came and granted him the privilege to live his life once more, on the time before the demons invaded the Mortal Realm.