Responses
***SPOILER WARNING***
Kasha's true identity is that he is of royal blood. He is Reji's biological brother, fully. They were separated when young, so they did know they were brothers until a year into living together and once Kasha found out, his reaction was to kick out Reji and abandon him. Regarding Rodin liking Kasha, that was way in the past where Kasha was misunderstood as a very pretty girl by Rodin. Rodin now has his own family, kids and all. Rosen is Kasha's mother (and Reji's).
They did not* know.
I just read the novel and almost in the end part but I got confused because so many new characters are involved which makes me confused. Maybe I did not read carefully I literally have no idea the true identity of Kasha, and how did Kasha and Reji knows each other when they’re literally from different countries/ continents . I think I read it like Rodin likes Kasha? If anyone has already read the novel , plz explain to me . And I forget who tf is Rosen I am begging coz I am confused af