When Boros was defeated and the cells were not completely dissipated, the soul of a time traveler accidentally merged with it. Under the influence of the mysterious "divine power", the overlord of the universe comes to the earth again in a perfect posture.
He inherited all the powers from the past, and also had a new soul and goal: hiding in the Heroes Association, absorbing the nutrients of the world from within, and constantly evolving.
He carefully hid himself until he met the most powerful superpower - the trembling Tatsumaki.
A subtle relationship unfolds among suspicion, collision and side by side.
And in the shadow of the earth, more terrifying threats are surging...
When the real crisis comes, can Saitama's punch solve everything? Will this reborn overlord become mankind's last... Hope?
