MTL - Deep Sea Embers - Chapter 71 Gather in the gutter

Humanity has endured for millions of years, but recorded history only spans a mere four thousand years. During that unrecorded deep-sea age, what exactly were we doing?Countless indescribable beings ruled the universe, and our powerful ancestors preserved the fire of human civilization under their threat.Then they disappeared, and we rose.Now, they are coming back, mysterious psychic powers are awakening, the flame of human civilization is slowly extinguishing, and no kings are in sight...Chen Ke opens his eyes to see a world full of ruins and himself on the brink of death.The moment his heart was pierced by the Blasphemous Dagger, he became a dying man without a heart.Able to survive only 2 hours...

A continuation from where High School DxD Volume 25 left off.

Six months ago, tens of thousands of black phantom towers appeared all over the world, floating above the cities. Chemists, physicists, religious people… all of them could do nothing.