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.
Genre: Drama, Romance Actors: Doh Kyung-soo, Hwang Seok-jeong, Hwang Young-hee, Im Sung-jae, Joo Da-young, Kim Hyeon, Kim Ji-ho, Kim Kwon, Kim So-hyun, Lee Beom-soo, Lee Da-wit, Lee Dae-yeon, Park Choong-seon, Park Hae-joon, Park Jung-min, Park Yong-woo, Yeon Jun-seok, Yoon Ga-hyun, Yun Yeong-keol Directors: Lee Eun-hee
