In the film series finale, Lily finds herself near financial ruin because of the debts left behind by her father, all while battling a newly diagnosed cancer. Too proud to seek solace from anyone around her, Lily sets off a chain of self-destructive events that lead to her estrangement from best friends Lin Xiao, Nan Xiang, and Ruby.
| Actor | Role |
|---|---|
 Yang MiLin Xiao | Lin Xiao |
 Amber Kuo Tsai-ChiehGu Li | Gu Li |
 Bea Hayden KuoNan Xiang | Nan Xiang |
 Xie Yi-linTang Wanru | Tang Wanru |
 Chen XuedongZhou Chongguang / Lu Shao (Shaun) | Zhou Chongguang / Lu Shao (Shaun) |
 Vivian DawsonGong Ming | Gong Ming |
 Lee Hyun-jaeNeil | Neil |
 Kai KoGu Yuan | Gu Yuan |
 Ren YankaiZhun Gu | Zhun Gu |
 Jing ChaoXi Cheng | Xi Cheng |
 Zihan JiLin Xiao | Lin Xiao |
 Tang ZhenGu Li [Teenage] | Gu Li [Teenage] |
 Kiwi ShangKitty | Kitty |
| Ren YankaiGu Zhun | Gu Zhun |
 Wang LinYe Chuanping | Ye Chuanping |
 Chen GuanningOncologist | Oncologist |
 Zhang ZimuGu Li [Young] | Gu Li [Young] |
 Chai WeiNot listed | Not listed |