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Episode 1 Cheng Yichen, Long Time No See
Episode 2 Lufeng, We've Both Grown Up
Episode 3 I'm Willing, Even for Stolen Happiness
Episode 4 What on Earth Did You Do to My Brother?
Episode 5 Actually, I Fell for You Long Ago
Episode 6 This Is the Best Memory the Four of Us Share
Episode 7 Both My Family and My Lover Are My Weaknesses
Episode 8 Let's Break Up If You Want
Episode 9 I Don't Dislike, I've Always Liked
Episode 10 We've Been Together Since We Were 18
Episode 11 Lufeng, I Want To Start Over With You
Episode 12 Together, Forever
Double Helix - Season 1 Episode 12 : Together, Forever
Yichen finally learns that Lu Feng's abnormal behavior stems from a mental disorder. Yichen is determined to help him get treatment.
Season : 1
