A drama about the process of Jo Eun Seo who was always first in her class, she lost her first place spot to transfer student Lee Hae Joon who has moved to another school in Daechi Dong, and the story went on.
| Actor | Role |
|---|---|
 Lee Yul-eumJo Eun-seo | Jo Eun-seo |
 Kwak Dong-yeonLee Hae-jun | Lee Hae-jun |
 Lee Hang-naJeong Na-yeon | Jeong Na-yeon |
 Kim Bum-joonKim Won-ki | Kim Won-ki |
| KKo Yoon-hooKim Jin-wu | Kim Jin-wu |
 Jung Jae-eunHwang Seon-mi | Hwang Seon-mi |