Hyo Sim starts her day early in the morning as usual. Her diligence and competence finally paid off, leading to a well-deserved promotion to team leader at TS Fitness. On this pleasant day, her mom calls, and as always, it signifies trouble that requires her immediate attention. Meanwhile, Tae Ho, who's been studying abroad in the US, decides to return home to investigate the whereabouts of his grandmother. (thetvdb.com)