Episode 1

Yoon Ji-won, a gym teacher at Dokmok High School, learns that her grandfather, Yoon Jae-ho, who is also the school's chairman, has lost control of the school foundation to Seok Kyung-tae from Seok Construction, an old rival. She senses she'll run into Seok Ji-won, Kyung-tae's son and her first love. The two Ji-wons (Yoon and Seok) avoid meeting each other. Meanwhile, Seok Ji-won is shocked to realize that Yoon Ji-won doesn't remember him and decides to take on the role of chairman.