Do Re Mi Fa So La Si Do

Jang Keun-suk

as

Sin Eun‑gyoo

Cha Ye-ryun

as

Yoon Jeong‑won

Lim Ju-hwan

as

Yoon Jae‑kwang

Jung Eui-chul

as

Kang Hee‑won

Park Min-ji

as

Sin Na‑ri

Lee Hyo-choon

as

Eun-gyoo's Mot...

Song Yool-Kyu

as

Deok-Pal

Kim Hye-ok

as

Jeong-won's Mo...