Yun Tae In is the leader of the idol group, Luna. He suffers from sleepwalking. To cure his ailment secretly, a fake doctor begins to live with him. In Yun Ju works as a tour guide. Her dream is to one day buy her own house. She happens to get involved in an incident and begins to live as a fake doctor with the 5 members of Luna: Yun Tae In, Lee Sin, Kim Yu Chan, Woo Ga On, and Seo U Yeon.
(Source: AsianWiki)
