Responses
Maybe "Brother In Law Assault"? Sorry, the only thing I can think of.
Does the seme kinda kidnap the uke before uke get married?
No it is not, but thanks for helping out :)
It might be! I don’t remember it’s been so long since I read it, so might be the one you are thinking of. Which manga is it?
Where the uke is getting married to a woman, and the brother-in law is pretty obsessed with him. And I think manage to manipulate him to have sex with him.
I don’t remember much except this. It’s not a very long manga.