In this week’s episode of Sky Muscle, Se Yoon, Hyuk Soo, JooE, Amber, Hyun Min, and Eun Seo learn jujitsu from a black belt, Lee Jin Hee. The members of Sky Muscle try and learn techniques and compete against each other. From practice to real sparring matches, all the members try their best to master jujitsu. Stay tuned to check their second lesson.

• Kang Young-Mi

• Park Na-rae
• Kwon Hyuk-soo
• JooE