Mambo

A human hero famed for slaying demons rescues a woman on the battlefield, only to awaken in the demon realm mid–wedding to her. She is a high-ranking demon seeking peace through a binding alliance, while he harbors deep hatred toward her kind. Bound by a pact that lasts until an heir is conceived, their forced marriage becomes a clash of prejudice, duty, and uneasy desire. Can enemies turned spouses find peace before war ignites again? Original Webtoon: Ridibooks

I am Han Yeesu, this city's coolest gay guy. But in the name of my love for Kang Jihyung, I'm willing to become a chaebol family's daughter-in-law. However- "She's the girl you used to always treasure and adore, father. I brought her here to marry her, so why are you mad?" One day, Kang Jihyung brought home a random girl. All just to screw over his father, Kang Joongman. What am I going to do alone, you nothing-but-a-handsome-face jerk! Although I was angry, I held onto my father-in-law Joongman for a new start. "It's because of you I ended up in this situation! Take some responsibility! You have to replace that guy!" After my father-in-law's scolding and constant nagging to become the group's successor died down, I came back to my senses to find myself buried in files and papers and working overtime. But even if it's mentally and physically painful and tiring, the desire never withers- Is it going to be the hot-tempered sexy old man Kang Joonman, Or my ideal type who betrayed me, Kang Jihyung? A sitcom filled with Yeesu's wavering love and hatred between the two filthy rich men.