[2] The drama is set around the mysterious Moorim Institute which teaches its students virtues including honesty, faith, sacrifice and communication.

Yoon Shi-Woo (Lee Hyun-woo) is the leader of the South Korean idol group Mobius.

His rise in popularity and fame made him become arrogant and prickly in nature, but he has a serious problem: he is suffering from painful hearing loss that doctors have not been able to determine the real cause of his hearing loss and the doctors were unable to find the cure.

Considering him more trouble than he is worth, Shi-woo's CEO tries to get rid of him by framing him in a scandal with a female rookie idol.

The boys are forced to share a room together and they instantly dislike each other, with them engaging in several heated disputes all the time.

Amidst all this an inevitable rivalry develops between both Chi-ang and Shi-woo as both, being competitive, constantly strive to improve and be the best.