Focuses on the life events of the residents of a boarding house in '90's Seoul. The plot revolves around the passion and vigor of being a young adult; the challenges of moving to a new environment; of getting along with each other, and growing up....

Son Ho-jun and Jang NaRa play a 40-year-old couple who don’t like each other. In the war-like life, they returned to the age of 20, rekindled the spark of love and started to lead a youth life they never experienced before....