The Knight King Who Returned With a God - Chapter 199:

As disaster was about to strike, a group of survivors transmigrated into a desolated world and were challenged to a game of survival. From terrifying acid rains, to endless natural disasters, the heavens burn while the earth scorches, radiation is rampant, and nobody is spared from the dangers of this hellscape. The only way one survives is by building a shelter and slowly upgrading it in hopes of surviving another day.

“You are mine, and I am yours…”

The world cannot be saved by the victory of a single man. This book begins at the point where the climax should occur; the battle between a Demon Queen who is a little strange and a Hero who is a little curious.

However, not only do these two give up the battle, instead, they join hands to directly challenge the complicated social structure which dictates that humans and demons must forever be in conflict.

This is too reckless right? How can this be done? Undoubtedly, you are thinking that.

Come, please turn the page. You are about to read a story that has never been told before; the story of the Hero… and the Demon Queen.

Throughout this current life of mine, I will pay no attention to my past lives, nor will I seek future lives. I wish to live vigorously, to pay back debt of gratitude and fulfill duty to avenge, to defeat valiant heroes from all species, and to proudly laugh at all the Gods and Demons of the Six Path of Reincarnation!

He died on the wedding of the girl he had a crush on, after a long and successful career. After convincing Yama to send him back to the world, he decides to fix the areas in which his life went wrong. Realizing the lack of love and romance in his past life, he sets out to conquer the hearts of various women.

- Description from Novelupdates