Yoga Institute aka Yoga Hakwon
Hyo-jung visits a mysterious yoga institute run by an ex-actress. At the intensive training course, a young yoga master, Nani (Su-yeon Cha) explains to Hyo-jung and four other girls that only one person who masters the course most successfully can get the secret of ultimate and immortal beauty.
There are five rules for them to follow during the one week course: 1. Do not eat, 2. Do not take showers within an hour after class, 3. Do not look into a mirror, 4. Do not go out of the building, 5. Do not call anyone.The Girls start to break the rules....