Brother Dayuan and Panpan Zhang, what terrier?

Regretful love. The love story between Tik Tok Dayuan and Panpan Zhang can be traced back to four years ago. At that time, they were a loving couple and experienced four seasons together. However, their relationship met with challenges when planning to get married, and finally ended in breaking up. Soon after, Brother Dayuan received a short message about Panpan Zhang. This short message made Brother Dayuan's mood fluctuate again. He wants to find Panpan Zhang and understand her present life and situation. After some efforts, Brother Dayuan finally met Panpan Zhang at the last minute. Unfortunately, however, their reunion has not changed anything, and their story is still a regrettable ending. Therefore, Brother Dayuan and Panpan Zhang's terrier are regretful love.