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Bad things are going on at an elite high school, and innocent people are falling prey. Chu Yin Yin and Xia Er are identical twin sisters who were orphaned at a young age. One grew up in an orphanage while the other grew up with a loving adopted mother. But when one twin sister, who is bullied at school, tries to commit suicide, her twin comes to the rescue, and they decide to take matters into their own hands. The sisters switch identities, but they must deal with emotional entanglements with Xu Kong Lin and Li Bai, who both want to be a part of their lives.

  1. Zhou Yuan Zhou


Series Cast

  1. Sophie Zhang as Chu Yin Yin | Xia Er

    Sophie Zhang

    Chu Yin Yin | Xia Er

    32 Episodes

  2. Joseph Zeng as Xu Kong Lin

    Joseph Zeng

    Xu Kong Lin

    32 Episodes

  3. Wang Bowen as Li Bai

    Wang Bowen

    Li Bai

    32 Episodes

  4. Ding Yiyi as On-ly

    Ding Yiyi


    32 Episodes

  5. Wu Jingyi as Shang Guanna

    Wu Jingyi

    Shang Guanna

    32 Episodes

Full Cast & Crew

Last Season

Season 1

2017 • 32 Episodes

Season 1 of When We Were Young premiered on August 16, 2017.

Episode 32

(1x32, September 28, 2017) Season Finale

View All Seasons

When We Were Young
When We Were Young


Original Name 青春最好时

Status Ended


  • See more TV shows from Tencent Video...

Type Scripted

Original Language English


Content Score 


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