After Sang Wan returned to China, she met Pei Ye, whom she had liked in high school. Sang Wan originally planned not to have any entanglement with Pei Ye.
A peaceful life ends one night.
Sang Wan accidentally learned from the drunken Pei Ye that she had caused Pei Ye seven years of sadness and grievance by leaving without saying goodbye.
Intention: Secret love, reunion after a long separation, reunion after a long separation