"I need a small room to experience life of the common people! About 30 pyeong?" The youngest son of a chaebol family, Yoo Ha-seong. The mission of the family fell on him! The so-called 'experience of ordinary people' in which you leave home for a month and live a frugal life. Lee Ji-ho, a commoner living in the high waters of Seoul. The crisis that befell him! Finding a 'roommate' to pay the rent. Ha-seong, the person raised with golden chopsticks in the mouth since birth, and Ji-ho, a professional saver. The tumultuous cohabitation life of two men <In the same room>