Toaru Majutsu no Index - Volume 12, Chapter 2: What kind of penalty game? Pair_Contract.

She found that her fiance was sick and squeamish, but it was a little expensive to raise.
The poor and poor high-level bosses have to make money to support their husbands while accumulating merits.
Then, he went to the construction site to move bricks and was caught by his husband. He set up a stall at the door to tell fortunes and was carried back by his husband. He went out to catch demons and was carried back by his husband.
The big devil is very distressed, what should my husband do if he always wants to keep her at home?
Yu Chao is rich and Huaizhi is helpless, what should the little girl always like to go to dangerous places?

- Description from novelbuddy

Lin Chuyi, after meticulously selecting for three years, chose a high-quality boyfriend, only to be cheated on a month into the relationship. She decisively broke up with him and immediately took the place of the Ye Family's daughter, marrying the heir of a wealthy family, Sheng Tingyuan.She planned to leave gracefully when the Ye Family's real daughter returned.Sheng Tingyuan blocked her path, “You lied to me and now you want to run away?”Lin Chuyi, “Don't you hate it the most when people lie to you? Should I not run and wait for you to deal with me?”Sheng Tingyuan pressed her into a corner, “You're not 'other people,' wife.”

She married a driver she just met. However, the last thing that had ever come to her expectation was that her bridegroom was no other than the most mysterious billionaire in the city. This marriage brought her baby twins. Thus, she worked harder to support this family. She was the queen of the entertainment circle. When she met the king who dominated the business world, she finally knew her husband’s true identity.

This is the story of a boy who lived a secluded life in the mountains, tending his farm, rearing his fish, and dreaming his dreams. Eh? Did I suddenly conquer all worlds and become the big boss? Or am I still in a dream?

- Description from Novelupdates