This is BL

I read it long ago, kinda want to read it again. Since it's poofed on my list and I can't remember the title, please help me find it(づ￣ ³￣)づ
It's MHW. In Black and White. Set in fictional historical period. The fashion is fictional fantasy world mid-eastern garb. The characters were drawn pretty. And it's completed. What I remember happened was, MC was a son of a fallen noble. The sole survivor of his clan, and was reduced to a slave. His family was framed for treason by the paranoid empress(if i remember that correctly). ML was the son of another noble family. ML and MC's family used to be tight, until ML's family were massacred, and he was also the sole survivor. The empress took ML under her wing. He was groomed to be a loyal supporter of then prince and emperor when they grew up. ML grew up hating MC's family and was the lead figure behind the demise of MC's family. ML took MC as a trophy, working as his bed slave. Tormenting MC was ML's revenge for the deaths of his family. MC took all the blame because he also believed it was his family's fault. MC didn't know if it's actually the truth since he was raised as beloved and sheltered younger son. MC had a crush with ML since they were kids that's why he also let everything he did slide. Then more toxic shii went on, later they seriously fell for each other, discovered they were victims if someone's ploy, went through more toxic shii again, then after the drama of fighting the villains, they had a HEA. I also think it's Omegaverse but not so sure.