Overview
On a live music radio show, a letter arrives from twenty-three years in the past. Through the letter, the first love and friendships of five friends are revealed.
Cast
- Doh Kyung-soo as Beom-sil
- Kim So-hyun as Soo-ok
- Yeon Jun-seok as San-dol
- David Lee as Gae-deok
- Joo Ah-reum as Gil-ja
- Park Hae-joon as Min-ho
- Kim Ji-ho as Gil-ja
- Park Yong-woo as Hyung-joon
- Lee Dae-yeon as Su-ok's Father
- Hwang Seok-jeong as Gae-deok's Mother