According to the Hero, everyone deserves a second chance. Everyone except the Demon Lord.

After defeating his greatest enemy, the Hero returns home for the birth of his tenth son, unaware that his newborn is the very Demon Lord he just killed.

Follow the former Demon Lord Lock Gellner as he grows up among the family of the Hero who ended his life.

For someone like him, it is a strange place to start over.

He never cared much about being "good." He spent his old life chasing whatever interested him, with little regard for what his whims might cost anyone else.

Now he's been born into a loving family that has no idea who he used to be.

Whether this new life changes him, or gives him the perfect chance to settle a score, remains to be seen.