[Wuxia Crossover] Want to Fall in Love? The Deadly Kind

Inspired by Jiang Yulang (Jiang Yuyan). Also known as The Villain's Guide to Romance. Jiang Yuyan was forced to become a stand-in for the little princess of the Demonic Cult. To survive, for the first ten years she devoted herself to studying one question: What kind of child do people like? I'm obedient and well-behaved, but I'm bad. A dark little girl teaches you how to win over the villainous big boss. Two villains focused on their careers fall in love and compete to see who's more ruthless. A dark master-and-disciple romance. My greatest wish is to become you. I'm selfish and despicable. I'm willing to defy my own nature and give everything I have to love you. I originally wanted to write a wuxia derivative, but I changed some of the characters, so I decided to change the names too. It's basically an original idea.

Theme: Female supporting character.