They're slim but strong... how is that possible?
Thank you so much, Teacher Arum and Teacher Kyung-ah!!
You can see Teacher Arum's workout videos on Instagram (ID: lagom_ka).
Teacher Arum doesn't have an Instagram account, lol
BGM Source:
Love Of My Life - Queen | Piano Cover (Sangeo of Music)
• Love Of My Life - 퀸 Queen | Piano cover 피아...