- Bunny ZhangZhao Man'erMain Role
- Zhang KaitaiYu MingMain Role
- Chen YeshengJin YuhaoMain Role
- He LingyaoZeng YoumeiMain Role
- Zhang YiFu XiaoyingSupport Role
- Pan XiaoxueWang RanSupport Role
Zhao Man'er, a star in her late 30s, accidentally receives a mysterious MP3 and gains the ability to talk to her high school self.
She tries to change her past and then her life, but she doesn't expect to plunge her past and present selves into an even bigger crisis ......