What!? Never seen a Demon King of Lust before? - Chapter 65 Boss Fight [1st Phase]

He rose from abjection and achieved eternity in glory.
He embraced the prettiest beauties and killed the strongest opponents.
He was able to shift the clouds into rain and cover the sky with one hand.
He could overrun the entire world and go anywhere as he pleased.
He pacified wars and held the world in awe.
He was matchless in the world.
However, his hair turned white overnight for his beloved woman and he was on the verge of death.
He was surrounded by enemies who were trying to take his life.
He struggled his way to become mighty and fought for everything he cherished.
For this age, he was the only king of the Dark World.
His name was a byword for might.
As a man living in the world, his only ideal was to pursue brilliance.

- Description from Novelupdates

Our straight (?) bottom woke up ten years into the future and found himself on the bed of his childhood friend… At the start, the bottom was shocked to his very bones, but he soon quickly accepted this premise and found the whole situation to be rather amusing. Precisely then, the bottom once again went back to his timeline — back to when he and the top were just platonic childhood friends.

Billions have perished, leaving only a few million survivors.After his death, Eric is summoned to another world that has been nearly destroyed by corruption.The gods’ influence has all but vanished, and it is up to him to rally the remaining survivors, reclaim the land they lost, and restore the gods’ cathedrals.In doing so, he grows stronger, inching closer to awakening the gods from their eternal slumber.Time is running out.Not only are unimaginable abominations preparing to strike, but Eric faces a deadly challenge from within.His system, a mysterious force aiding him, comes with a dire warning:[WARNING][Each time the system responds, it consumes host essence. When essence runs out, the host’s soul will perish along with the system.][Recommendation: Communicate only when absolutely necessary.][Current essence: 940][1 essence = 1 word generated by the system.][Choose your next words wisely.]