is this one https://www.mangago.me/read-manga/imperfect_combustion/ this is the first manhwa came out in my mind since that's how the manhwa got famous when it first release
there's too many like that, give more detail
oooh wait is it Reverse Thinking...
https://www.mangago.me/read-manga/reverse_thinking/
sounds like how people talk about this
https://www.mangago.me/read-manga/love_all_play/
Does anyone know the name of this bl manhwa TnT, where the uke have a black hair and is kind of a psycho(?) and smiles like this •ᴗ• and doesnt have a shine in their eye