Take a nostalgic trip back to the late 1980s through the lives of five families and their five teenage kids living in a small neighborhood in Seoul.
S1 E1: Hand in Hand
S1 E2: One Thing You Misunderstood About Me
S1 E3: The Rich are Innocent, and the Poor are Guilty
S1 E4: Can't Help~ing
S1 E5: Preparing for Winter
S1 E6: The First Snow is Falling
S1 E7: To That Person
S1 E8: One Warm Remark
S1 E9: What it Means to Cross the Line
S1 E10: Memory
S1 E11: Three Prophecies
S1 E12: What It Means To Love Someone
S1 E13: Superman is Back
S1 E14: Don't You Worry
S1 E15: Between Love and Friendship
S1 E16: Life is an Irony (1)
S1 E17: Life is an Irony (2)
S1 E18: Goodbye, My First Love
S1 E19: You Did Your Very Best
S1 E20: Goodbye, My Youth. Goodbye, Ssangmundong.