Yeong-su and Jeong-ah experience many problems as their budding romance defies the strict rules of the co-ed highschool they attend. After graduation when it looks like they can be free to live their own lives, Yeong-su joins the military and their relationship will never be the same.
| Actor | Role |
|---|---|
 Im Ye-jinJeong-ah Han | Jeong-ah Han |
 Lee Duck-hwaYeong-su Kim | Yeong-su Kim |
 Shin GuYeong-su's Older Brother | Yeong-su's Older Brother |
| MMun Oh-jangJeong-ah's Father | Jeong-ah's Father |
| KKim Yun-gyeongMiss Muntae - Teacher | Miss Muntae - Teacher |
 Han Tae-ilNot listed | Not listed |