Details
On a live music radio show, a letter arrives from the 23 years in the past. Through the letter, the first love and friendships of five friends are revealed.
Cast & Crew
- Doh Kyung-soo , Kim So-hyun , Yeon Jun-seok , Lee David , Joo Ah-reum , Park Hae-jun , Kim Ji-ho , Park Yong-woo
- Lee Eun-hee