
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
Beom-sil

Kim So-hyun
Soo-ok

Yeon Jun-seok
San-dol

David Lee
Gae-deok

Joo Ah-reum
Gil-ja

Park Hae-joon
Min-ho

Kim Ji-ho
Gil-ja

Park Yong-woo
Hyung-joon

Lee Dae-yeon
Su-ok's Father

Hwang Seok-jeong
Gae-deok's Mother

Park Jeong-min
Yong-su

Lee Beom-soo
Young-chul

Hwang Young-hee
Bum-sil's Mother

Park Choong-seon
Bum-sil's Father

Kim Kwon
Young-il

Im Sung-jae
Sung-jae

Kim Hyun
Woman

Yoon Ga-hyun
San-dol's Mother

Yun Yeong-keol
Auctioneer

Lim Cheol-soo
Marine Products Young Man

Oh Yoo-jin
Min-ho's Wife (voice)
Crew

Lee Eun-hee
Director, Screenplay
Kim Jin-a
Adaptation
Hong Chang-pyo
Adaptation
Han Chang-Hoon
Screenplay
Kim Hyung-joo
Editor
Lee Joon-gyoo
Director of Photography

Kang Sook
Storyboard
Choi Ki-sup
Producer
Jeong Mun-gu
Producer
Bang Mi-Jung
Producer
Joo Pil-ho
Producer
Lee Hyun-joo
Production Design
Lee Jin-suk
Costume Design
Kim Sin-yong
Production Sound Mixer
Song Jae-wan
Lighting Director
Park Choul-yong
Special Effects Supervisor
Kim Han-joon
VFX Supervisor
Lee Ji-soo
Original Music Composer
Ji Sung-yong
Key Grip
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