HUGE SPOILER WARNING
Okay so basically the 2nd male lead (he’s the guy who the female lead is supposed to seduce) notices that the male lead is taking advantage of the female lead. And he’s more suspicious of the male lead because he’s not treating her like a sister but like a lover. And since he thinks that they’re actual siblings he’s upset about it and offers the female lead to stay with him in his territory. And the female lead accepts his offer to be with him. This upsets the male lead because he’s in the process of understanding that his feelings for the female lead. Also there’s more context to this and how much he’ll suffer without her. So I’d recommend looking up “ high class society novel spoilers” to understand it more.
My only wish is for the ML to suffer.
Novel readers pls tell us it will happen…