So that people can understand why she chose him. She wanted to make people believe that she wanted him as a toy due to his pretty face and was playing with him.
so she can trick her brother and the others that she actually made cassis into sl*ve/s*x sl*ve
I see, I see, that explains! Thank you so much everyone!!
I know others have already replied but I would like to add, that from what I gathered reading the novel, making other family members think of him as a s*xslave was a great excuse as to why he was in such a good physical condition, with no visible wounds inflicted. It made others less suspicious if they saw him by any chance. Plus, seeing as everyone knew Roxana has the power of her beauty and other people do as she wants, no one would question if he has actually been broken and fallen for her charm and s*x appeal so quick.
I see, I see! Thank you for the comprehensive explanation! It really made sense now :)))
[Spoiler]
On chapter 13, why did Roxana gave him hickeys? I wasn't able to decipher it.. like if she has her reasons for doing it or she just wants to..