(Affair with Brother-in-law and Younger Sister-in-law, Infidelity, High Intimacy) On Chen Cheng’s birthday, her good sister invited her to go to a brothel, and ended up hiring her own brother-in-law. Chen Cheng accidentally injured her buttocks and went to the hospital to see a doctor, only to encounter her brother-in-law there. With intentional or unintentional seduction from her brother-in-law, Chen Cheng becomes lost in the excitement of the affair… The seductive younger sister-in-law who can perform various difficult positions vs the seemingly serious and secretive brother-in-law. Disclaimer: 1. There is a hidden story behind the marriage of the brother-in-law and sister-in-law. 2. Both the male and female leads are not virg*ns, but after being together, they only have each other.