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.
Yoon Se-na
Lee Hyeon-wook
Shin Hae-yun
Shi-woo
Seo Yoon-ji
Kang Tae-min
Roy
Seo Jae-young
Kang Rae-hun
Yoo Sang-bong
Oh Hee-sun
Bool-gom / Brown Bear
Yoo Ra-eum
Yoon So-eun
CEO Lee Jong-ho
Bae Sung-jin
