SISTAR former member Dr. Soeu appeared in vocal instruction of A class.
● Afraid of Mr. Bae Yoon-jeong, a teacher of dance. .
● Miyawaki Sakuro, even if it is said that even Japanese lyrics are good, I already master the Korean lyrics.
● Miyawaki Sakura, a treble was pointed out, but the sense of self-confidence is restored by teaching Professor Soeu.