Three major things happened in their circle in 2011:
1. Elder Xiao passed away.
2. Han Ye enlisted in the army.
3. Pei Ning, Elder Xiao's granddaughter, was taken back south by her father, who had always neglected her.
Five years later, Pei Ning got married. Her groom wasn't Han Ye.
Three major things also happened in their circle in 2018:
1. Pei Ning came back.
2. Han Ye came back too.
3. Han Hao watched Pei Ning slap his brother across the face on the street.
* The male and female leads are seven years apart in age. Includes criminal investigation elements.
* The heroine has an ex-husband.
Theme: Rekindling an old romance