A man is tormented by the death of his girlfriend in an accident that occurred before his eyes, he decides to secretly help her sister fulfill her dream of becoming a songwriter.
Krystal Jung
Rain
Cha Ye-ryun
L
Gong Seung-yeon
Jo Hee-bong
Baek Seung-Heon
Kim Jin-woo
Lee Ho-won
Kim Ki-bang
Kim Hye-eun
Lee Yoo-jun
Na Hae-ryung
