I Really Don't Notice - Volume 6, Chapter 4 - Underdog

Before going to college, an ordinary high school student went to celebrate and got drunk. When he woke up, he found himself in a completely different world. There was a big sect, the approaching sect entrance examination, a slum where his body’s previous owner lived, and a shared memory about a missing young girl.

Legend says, that there is a great demon, who is the human kind’s public enemy. He is the galaxy federations’ nightmare as he wanted to conquer the whole universe. On the first day, he completely took out the human fleet, plunging them into disorder. On the second day, he declared that he will wipe out the whole federation. On the third day, he declared——that the hero who shot him in their previous battle must marry him, or else, he will destroy everything.

The galaxy federation president and the council members had a long meeting after that. They decided to dispatch a soldier, Wu Xing Yun, and marries him off to the arrogant demon. Wu Xing Yun was once a hero who fought for the nebula, and henceforth, he was tasked—— for the sake human race and the universe’s peace, to eliminate mistresses, settle his matters with the mother-in-law, and fix the man’s crooked ways.

Wu Xing Yun was very perplexed when he asked his commanding officer: “Sir, why did it have to be this way?”

Commanding Officer: “Soldier, bear in mind, that this mission of yours, is for the sake of the universe and mankind’s happiness. You must hold on to your husband, and fight other mistresses! Do you have the confidence to accomplish this task?”

Wu Xing Yun, stood straight, saluted, and instinctively replied: “Sir, yes sir! I will accomplish this task!”

- Description from Novelupdates

The Void Demon Realm invades, and Shu Feng awakens to become a Spiritualist, coming into contact with the true reality of the world.No one knows that he has a Mysterious Base within his body which could use Void Demon's power to enhance his body.

To exist in a certain place, at a certain time—it's always either by chance, or by choice.But sometimes,There is a third force.One that doesn't ask.One that doesn't explain.It simply places you—wherever it wants.Arséne had always been dragged into places he never chose.Situations he never asked for.Realities he never belonged to.And when, at last, he decided to act on his own terms—To take the initiative,To move first,To choose…He simply died.