One is the brother of the boss, and the other is the adopted sister.
The originally peaceful life was suddenly broken.
The brother is still the brother, but the sister is no longer the sister.
Excellence: "Who are you?"
Shu Yun: "Brother, the Shu Yun back then has disappeared and is just a clone of me. I am the real body. Don't think about her anymore, okay?"
Excellence: "No..."
Shu Yun: "Brother, why are you so disobedient? I will be the only Shu Yun from now on. All you need to do is remember this."
Concept: A purely self-interested work, a fanfic, a setting that I have fantasized about since junior high school.