I want to learn sign language. - S1.E10

Eun-gyeol can't hide his feelings for Se-gyeong and ends up kissing her. Chung-ah's stepmother calls Eun-gyeol separately and tells him to quit before he teaches Chung-ah sign language. The members of the band decide to change their band name and theme right before the festival and ask Se-gyeong and Chung-ah for help. Meanwhile, Eun-gyeol learns that Master has sent a helper for him.