When Kang Bok-Soo was a high school student, he was falsely accused of committing violence and kicked out of school. This was caused by his first love Son Soo-Jung and a male student Oh Se-Ho. Kang Bok-Soo is a now an adult, but his life has not gone smoothly. To get revenge on Son Soo-Jung and Oh Se-Ho, he returns to the same high school as a student. The environment at the school has changed and Kang Bok-Soo gets involved in unexpected cases.
Yoo Seung-ho
Kang Bok-Soo
Cho Bo-ah
Son Soo-Jung
Kwak Dong-yeon
Oh Se-Ho
Kim Dong-young
Lee Kyung-Hyun
Park Ah-in
Yang Min-Ji
Cheon Ho-jin
Teacher Park
Kim Mi-kyeong
Lee Jung-Sun
Lee Kang-min
Yoon Seung-Woo
Yeon Jun-seok
Oh Young-Min
Kim Kwang-kyu
Song Yoo-Taek
Uhm Hyo-seop
Kim Kwi-Chang
Choi Won-hong
Kang In-Ho
