Season
- Season 1 2017-10-09
Episode
- Episode 1: The Boy We Loved Back Then
- Episode 2: Sex Tape
- Episode 3: Love Story
- Episode 4: It's Been a Long Time
- Episode 5: The Curse of Bongo
- Episode 6: Love Letter
- Episode 7: An Unexpected Turn of Event
- Episode 8: Christmas in August
- Episode 9: My First Love
- Episode 10: The Wedding
- Episode 11: My Friend's Wedding
- Episode 12: The First Date
- Episode 13: P.S. I Love You
- Episode 14: What Is Your Wish?
- Episode 15: Stand by Me
- Episode 16: Death Day
- Episode 17: 10 Reasons Why I Can't Love You
- Episode 18: I Hate Myself the Most
- Episode 19: Love Wind Love Song
- Episode 20: I'm Sick of It
- Episode 21: Tian Mi Mi, as Sweet as Honey
- Episode 22: I Think I Found My Medicine
- Episode 23: Are You Going to Get Married?
- Episode 24: I Know Nothing about You
- Episode 25: While You Are in Love
- Episode 26: Love Cosmos
- Episode 27: Before Sunrise
- Episode 28: Let's Stop Here
- Episode 29: Begin Again
- Episode 30: Only the Moon Knows Whom I Love
- Episode 31: Happy Ending
- Episode 32: The Four Bongos
20th Century Boy and Girl Season 1 Love Cosmos
The heartwarming romantic comedy is about the friendship and love lives of three single virgins born in 1983. Their romantic lives begin when the boy they liked in their youth shows up one day. They live in Oksu-dong in rundown apartments, and the warm human drama will be about neighborly affection, and the meaning of home, family, and friendship.
