Because it's manhwa

I say seme, but that's really a Japanese term--is there an equivalent term in Korean? Just curious (づ￣ ³￣)づ

Um no it's not gonna be incest because he's not going to be the brother. Is it that impossible to have two different biological families?

I don't think uke is the brother because from what the recalling image, it seemed the brother did something serious to the seme. So if the uke is the brother, he should have remembered.

I never said it was going to be incest, just when he said he had a brother it was at first reaction I had-- and then I wrote "glad that wasn't the case", so yeah, I already know and said it is not incest that the two main characters are not blood related.

I was joking around bc Korean dramas and manhwa have crazy drama (that I love) so I've learned to expect everything, lol, even just at first

I did sort of say that I thought he was the brother, but don't like incest so glad it wasn't the case this time. I just learned to expect anything with Korean manhwas. But I do like how you tried to look for evidence, which could be very helpful for some other mysterious semes in other comics!