The Little Princess, a Marten-Taming Poisonous Beauty

Diaohan, a young lady from a distinguished family, is an eccentric, cruel, selfish little princess who thinks only of herself. She grew up with her older sister and their childhood friend, her brother figure Shennan. Now that they are adults, Diaohan has secretly fallen for Shennan, an elegant and charming gentleman. But Shennan cannot stand Diaohan's bossy, self-righteous ways. He prefers Diaoyu, a gentle, virtuous girl with a kind nature. Determined to win Shennan over, Diaohan hatches a wicked plan: a weekend trip to a remote mountain valley for sightseeing, exercise, and rock climbing.

When the weekend comes, the three of them head to a remote mountain valley park to climb, exercise, and enjoy themselves. Taking advantage of Shennan and Diaoyu's kindness, Diaohan plots against her sister. Her scheme succeeds!