The reson why I watched this drama because of it's less episode and I also found very interesting genre. It's only have five episodes that why I binge watch this drama.

Story- The story is all about a girl named Yun Xiaoxi (Lin Ying Ying) who always bullied by their classmate's and got depressed by their mom's death and wanted to change the past if she got a chance. One day she receives a 'regret medicine' from an unknown person and went to the past to change it.

Things I liked- The first thing I liked in this drama that it only gets to the point and no extra time has been taken for romance or the chasing part. And the doubts that you may have in the starting it all got cleared in the end. So be calm while watching this.

Things I don't like- Because of its shortness audience were not able to attach with the emotions or not able to know more about the characters. And in the end they had not mentioned or show that the last scene was of the past or future.

Hence, as a short Drama with the good plot I recommend you this drama and because it only have five episodes that means it cannot waste your time at all. No need for second season.