Idol School, classroom-based lessons started as a result of the academic meeting. Classes are divided into beginner's and upper classes by field.

* Dancing advaced

Natty

Kim Eun Soo

Lee Chae Young

Song Ha Yeong

* Performance advaced

Lee Seo Yeon YG

Park · Ji Woo Hon JYP

So · Hyerin SM

Unintentionally, trainee of former member of three large entertainment offices. .