At the end of MBC TV’s High Kick 3! Short Legs Counterattack which aired on February 1 at 7:45 p.m, a preview of the next episode was broadcast. In that preview, Park Ha Sun and Seo Ji Seok(plays the role of Yoon Ji Seok) is having a conversation, and Seo asks Park about her first love.
So Park thinks back to her college years and it is revealed that Yoon Si Yoon is her first love. In the past, Park showed her affection by giving Yoon a hot cup of coffee when he is asleep in the library.
After that, they will be meeting again in the present.