Arifureta Shokugyou de Sekai Saikyou (WN) - Volume 1 Chapter 5

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

“You mean that Prince Yu wants to marry me?”

Married for four years, there was no love in the life of Su Ran and Song Ting Yu. They were forced to marry because of Su Ran’s pregnancy. Ting Yu thought Su Ran was a foxy woman that tricked him with a purpose to enter the Song household, that’s why after the night after they both said the wedding vow, he immediately went overseas to be with his love and never came back even once​ to see his son.

Four years later, Song Wei Xi, the son of Su Ran and Song Ting Yu, was diagnosed with a rare illness. Madame Song, Ting Yu’s grandmother, knew this situation was urgent and asked Song Ting Yu to come home to help with this situation. Song Ting Yu couldn’t help but come back home, he came back to face his forgotten wife and child. Su Ran promised Ting Yu that she will sign the divorce paper if he agreed​ to help. Will Song Ting Yu agree with this proposal? Will he still leave after the recovery of Song We Xi or will he stay? Will love start to grow in their family?

The ordinary world is not ordinary, ordinary people are not ordinary, and safe places are not safe.

This is a story of a passer-by male protagonist who is entangled by various girls with strange hobbies or even non-human beings while surviving in the cracks and opening a harem.

- Description from novelbuddy