I am, Flame-Chaser of Previous Era - Chapter 34: Break

As a promise, he went out into the world as an assassin. 3 years later, after becoming the Supreme Assassin, he gave up on everything he had and returned to the ranks of ordinary people. But one day, Kismet, a mystical game created by the National Research and Development had appeared.

Enigmatic hands, spectral frame, and one cunning strike just like the swing of the Grim Reaper. The Supreme Assassin takes on the mystical world, and how his legendary tales sets off, progressively ascending the altar to becoming the best.

- Description from Novelupdates

The whole world mutated. Mysterious resurrections happened in real life. The Tribulation descended.

The future of the world and the direction of time possess infinite possibilities. Even the same event may lead to two completely opposite outcomes due to a millisecond deviation in completion time.

I have led the Evolutionary Deluge, causing species worldwide to evolve and creating a splendid era of warriors. I have also allowed the invasion of evil gods, bringing those indescribable ancient dominators to the mortal world, instantly corrupting the Earth with evil beings.

In the infinite space-time, there are a million possibilities. I have witnessed the divinization of machinery and have seen the revival of myths. Humans call me: The Creator of Everything, The Eternal Supreme God, The Cause of All Results, The Origin of Everything.

But.. I prefer to call myself a humble observer.

As childhood sweethearts, they were made to engage under the manipulations of their families. It involved having to to live in the same room and sleep together.

One night, she is accidentally made drunk, and in his delirium, he kisses her only to realize he enjoys it. From time to time, he would sneak a kiss on her, but his “crime” is eventually discovered in an accident. After being accused by her, he says with a smile, “You are my wife, why can’t I kiss you?”

The two people’s daily routine is full of bickering and mutual discrediting of each other.

Although he claims to disparage, he actually cares intensely about her. He feels crazily jealous when she is close to other men, to the point of tying her to his side, so that she becomes exclusively his.

- Description from web