I Met the Male Lead in Prison

I met the male lead in the prison. I know he's supposed to be a 19+ tragedy novel male lead, but... Why is he like that? "Woof! Woof! Woof! Grrr." It was said that he was cursed to turn into a beast... So, what is it like to awaken from the curse? "T-t-take responsibility, or d-don't touch me!" I just felt relieved, thinking there wouldn't be any romantic feelings or involvement between me and the male lead. "One year later. P-please meet me... on the day I get out of here!" Meeting him didn't seem too difficult, so I agreed. So I was released first, but... ** ”Come on in. My lovely little sister who's as charming as the flower." On the day I was released, the man who approached me turned out to be my brother. I was the villain's sister. "You went through a lot on my behalf, didn't you? I've been waiting for you." …Fuck. On top of it all, I’m the precious little sister of the villain who…