Official website: http://program.tving.com/ocn/voice/
Casts
Lee Ha-na
Kang Kwon-ju
Song Seung-heon
Derek Jo
Son Eun-seo
Park Eun-soo
Kang Seung-yoon
Han Woo-joo
Kim Jung-ki
Park Joong-ki
Song Boo-gun
Goo Gwang-soo
Baek Sung-hyun
Shim Dae-sik
Kim Jae-uck
Mo Tae-gu
Han Jong-hoon
Chad Lee
