Double Helix - S1 E1

2. Lufeng, We've Both Grown Up

Lufeng’s hospital confession turns their reunion into a relationship, finally ending Yichen’s frantic denial.

3. I'm Willing, Even for Stolen Happiness

Devastated by Lufeng's engagement news, a drunk Cheng YiChen mistakes Qin Lang for his lost love at a bar.

4. What on Earth Did You Do to My Brother?

Lu Feng proposes getting back together, leaving a conflicted Cheng YiChen terrified of getting hurt again.

5. Actually, I Fell for You Long Ago

Cheng YiChen rushes to the hospital fearing for Lu Feng's life, leading to a reconciliation after clearing up the mix-up.

6. This Is the Best Memory the Four of Us Share

Lu Feng's romantic Valentine's Day plans with Cheng YiChen are crashed by colleagues, but Lu Feng uses the dinner to announce their love.

7. Both My Family and My Lover Are My Weaknesses

Cheng YiChen is caught in the middle after his mother collapses from anger upon catching him in an intimate moment with LuFeng.

8. Let's Break Up If You Want

Mrs. Cheng's condition worsens. In order to fulfill her wish, Cheng YiChen promises to marry ZhuoLan.

9. Episode 9

10. Episode 10

11. Episode 11

12. Episode 12