What the hell is this?!'s manga / #mystery(3)

Okay now that's a lot of genres and tags... Not sure if it's yaoi or shounen ai but idgaf this is very interesting, I've seen many demon shet related bl but this one is diff(most of it are literally just fookingg up the MC lol) So I think he will try to get revenge for his brother but he falls for the "demon" instead/or the demon will fall for him( since it's only chap 1 the demon who's prob gonna be the Male lead hasn't been shown but we all can see his face on the cover but that Zhi Nan guy kinda looks similar on the one in the cover..

The best BL that I've read. Everything was on point.