Eun-gyeol resolves to stop the accident that caused Yi-chan to become deaf and clings to him, vowing to teach him everything he needs to know. He even promises to gift him the band Yi-chan needs. However, the school festival is in one month, and the person Yi-chan is doing this for has left the country and isn't going to return.
Ryeoun
Ha Eun-gyeol
Choi Hyun-wook
Ha Yi-chan
Seol In-a
Choi Se-gyeong / On Eun-yu
Shin Eun-soo
Yoon Chung-ah
Choi Won-young
Eun-gyeol's Father
Seo Young-hee
Eun-gyeol's Mother
Jung Sang-hoon
Master
Cheon Ho-jin
Grandpa Viva
Goh Doo-shim
Go Yang-hee
Kim Joo-ryoung
Im Ji-mi
Bong Jae-hyun
Ha Eun-ho
Koo Jun Hoe
Koo Jun-hyeong
Ahn Do-gyu
Oh Ma-joo
Yoon Jae-chan
Kang Hyun-yul
Lee Ha-min
Lee Si-guk
Lee Su-chan
No Se-bum
Kim Tae-woo
Yoon Gun-hyung
Kwon Do-hyung
Yoon Ju-yeop
Lee Soo-min
Yoon Sang-a
Lee Suk-hyeong
Jung Bal-san
Lee So-yeon
Adult Choi Se-gyeong
Park Ho-san
Choi Hyun
Yeon Oh
Jung Ji-oh
Oh Hee-jun
On Ji-hwan
Han Min
Bae Soo-tak
Kim Jun-hyung
Yoon Dong-jin
