The Wizard's Contract Marriage: Everything for the Sake of My Beloved Family

"This is a contractual marriage. Don't be foolish enough to expect my love. You just need to quietly handle the household affairs." The young man before me said this and promptly left. I desperately held back the urge to laugh. That's right. This is a contractual marriage. One that I planned, that is. ※This is convenient fiction with loose worldbuilding. ※I'm unsure if the genre is appropriate...