World 1: [Sick and weak female supporting role in sadistic stories]
A female supporting character who is used as a revenge tool by the heroine.
World 2: [Reciting the original wife in German]
The vicious first wife who drugged herself to join a wealthy family, only to find out that her husband didn't love her and even tried to cheat on her, using her as a tool.
World 3: [Thousands of people dislike the Black Moonlight in the novel]
He steals the heroine's credit and makes it his own, making his senior brother love him, and he also wants to sleep with his master's black moonlight.
