Cast
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.
Doh Kyung-soo (Acting)
Kim So-hyun (Acting)
Yeon Jun-seok (Acting)
David Lee (Acting)
Joo Ah-reum (Acting)
Park Hae-jun (Acting)
Kim Ji-ho (Acting)
Park Yong-woo (Acting)
Lee Dae-yeon (Acting)
Hwang Seok-jeong (Acting)
Park Jeong-min (Acting)
Lee Beom-soo (Acting)
Hwang Young-hee (Acting)
Park Choong-seon (Acting)
Kim Kwon (Acting)
Im Sung-jae (Acting)
Kim Hyun (Acting)
Yoon Ga-hyun (Acting)
Yun Yeong-keol (Acting)
Lim Cheol-soo (Acting)
10 August 2011
18 June 2015
14 March 2015
3 February 2016
24 November 2016
6 February 2017
6 July 2016
5 October 2018
16 May 2013
22 December 2011
27 March 2024
21 October 2020
31 October 2013
3 October 1998
4 May 2011
1 October 2021
29 December 2021
31 January 2018
31 January 2009
22 February 2020
24 February 2016