Toaru Majutsu no Index - Volume 15, Prologue: The finest lead bullet for you my dear. Management.

Shen Chen starts living a life of unrestrained indulgence since marrying Shi Yu. The most beautiful lovers’ prattle she has ever heard is “I will punish those whom you have offended.”Skit:“A handsome man delivered a parcel to your wife just now, Sir.”The young master acknowledged with a lazy “Mhm.”Half an hour later, all courier companies in the city go belly up.“Your wife has offended someone, Sir.”“Mhm.”Ten minutes later, that person is left to die in a desolate mountain.

There was no light in the night, save for the sound of war drums and war cries.

The young man listened carefully, it was the sound of his heartbeat and the flow of his blood.

What lay hidden in the darkness ahead? Is it man, god or……a monster?

There was no such thing as the best road, because the journey beneath one’s feet is limitless!

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

[Shuangjie, sweet pet, white and black, happy friends, 1v1]

The majestic master of Yunran, who is proficient in medicine, poison, and martial arts, lives happily like a fairy, but once he was struck by lightning, his soul turned into the bullied eldest lady of the Shangshu Mansion, and his life is not as good as a dog…

The step-sister regretted her marriage, and directly ordered someone to knock her unconscious and throw her on the sedan chair, and marry the man who was rumored to be suffering from eye and leg diseases.

*****

On the wedding night, Nangong Mo said to her:

“This king is blind and disabled and his life is not long. I don’t want to miss the beauty. You can reconcile and find another lover.”

Yunran replied affectionately: “People in the world often say that when you get married as a husband and wife, there is no doubt about your love. Now that you and I are married, we should never leave. I will accompany you to the last moment of my life.”

However, Nangong Mo heard her voice:

[Heli? Why do you want to reconcile? Living in your house, spending your money, and when you close your eyes and kick your legs, I will dig a hole and bury you, and then inherit your wealth, rich land and beautiful family, wouldn’t it be beautiful? 】

Nangong Mo gritted his teeth slowly: “Heh… very beautiful!”

- Description from novelbuddy