No time to write a proper blurb, so here's a quick idea:
A pampered wife from ancient times x a controlling, patriarchal husband
The husband is a patriarchal old-school type with a particular kink and a strong need for control. But he thinks the outside world is filthy, so he's never acted on it.
The wife is a legitimate-born young man from a family of imperial weavers, about to be married when he transmigrates to the modern era.
He arrives in the middle of a wedding. Though he has no idea what's going on, he obediently goes through with the marriage.
Now that they're married, he has to fulfill his duties as a wife. After all, he was raised to put his husband first. So he sweetly asks if his husband would like him to keep him company in bed, hitting the husband's kink right on the mark.
But the husband remains a gentleman, saying this is only a marriage of convenience and there's no need for that!
The wife is terrified, thinking her husband plans to abandon him, and hurriedly promises he'll make his husband feel good, though he actually has no idea how.
The husband is speechless and finds the wife's phone, telling him to contact his family.
With tears in his eyes, the wife refuses, saying he doesn't need to contact anyone but his husband. Once again, he secretly hits the husband's kink right on the mark.
The husband keeps holding back, but the wife fits his preferences too perfectly. He gently coaxes him along, then discovers the wife has no boundaries with him at all, and has the time of his life!
The wife's friends mock him for his family's decline. He came from a distinguished family, yet ended up marrying a nouveau riche man. Little do they know the two of them will take their family business to new heights.
The wife says, "I have nothing to say to people like you who don't have husbands!"
Theme: If you don't love your wife, you don't get to eat!