Season 1 Episode
- Season 1 Encountering You By Accident
- Season 1 That is My World
- Season 1 Champion
- Season 1 Towards Tomorrow
- Season 1 Confession
- Season 1 With The Thought That It Must Be Forgotten
- Season 1 Like This... Will Be Forgotten
- Season 1 My Love, Cry Baby
- Season 1 High Speed Romance
- Season 1 Little by Little, Slowly Stepping Towards You
- Season 1 That Place, That Time
- Season 1 Don't Cry
- Season 1 Fly High
- Season 1 Smile, You
- Season 1 Let Your Dreams Soar
Heartstrings - Season 1 Episode 4 Towards Tomorrow
6.94 66 minutes With acting rehearsals underway, several girls aim to put Gyu-won in her place, whereby Gyu-won decides to quit the show.
