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.
Full Cast of Unforgettable
Park Yong-woo
as Hyung-joon
Park Yong-woo was born on March 16, 1971 and is currently 53 years old.
Hwang Seok-jeong
as Gae-deok's Mother
Hwang Suk-jung (born February 2, 1971) is a South Korean actress. She has mostly played supporting roles in films and...
Park Jeong-min
as Yong-su
Park Jeong-min was born on February 25, 1987 and is currently 37 years old.
Lee Beom-soo
as Young-chul
Lee Beom-soo (이범수) is a South Korean actor.
Im Sung-jae
as Sung-jae
Im Sung-jae was born on January 18, 1987 and is currently 38 years old.
Crew of Unforgettable
Discover the backstage crew of Unforgettable →- Released on February 24, 2016