Passerby A, She Protects the Love Between the Male and Female Protagonist Online

Xu Heng died and traveled into a world derived from a novel about an aristocratic academy. The system told her that she could survive by guarding the love between the male and female protagonists. So she started a conscientious battle to defend love. That green tea supporting actress, come at me if you want anything! And who allowed you to take advantage of the male supporting actor? Damn it! Someone: I like you, let's be together! Xu Heng: Wait, wait until my CP gets married. The cp I am talking about must be HE