Yaochuan Ta Ren Mei Xin Shan

If the villain gets killed by the bandit, then the happy ending will be achieved! Xiao Mian Niang has had to pretend to be an innocent flower all her life, but she finally reveals her true dark nature and personally shoves the villain off a cliff. But... did she get the script wrong!? It's saying there's only one way to achieve the happy ending—to fall madly in love with the villain. "Sister-in-law, I've adored you since childhood. Yet you deceived and betrayed me." The villain gave her an icy smile, "Now that I despise you to my core, you seriously expect me to fall in love with you again?"(Source: Bilibili, translated)