2nd option always more likely
i thought it's the little bro that like his brother in law for number 1.
It' s a yaoi so for sure he likes his own bro
i'm sorry but you're being bias, in anime/manga, the incest is way stronger for hetero manga in genre such as shounen, adventure, fantasy, ski-fi,...
I m not talking about it...i m just saying that because it yaoi the other person loved is definetly a guy
And what are you talking about? His brother in law?? Are talking about the same manga? It' s about of someone who like his own bro and he sad when he now that his bro guetting married with his future " sister in law" because he is jealous. And some other guy can hear his heart's song...so are we talking about the same manga in this topic?
I read too many fiction and yaoi to the point i can guess there is two possible route. 1. the lil bro like sis in law or 2. He is in love with his brother