Dong Do is an ordinary high school student who likes movies. He begins to hang around his classmate, tough Hyun Seung and his bullying clique. Cigarettes and harsh words belched out of their mouths attract him, and Dong Do thinks they are cool and wants to be like them. Then a small misunderstanding leads them to become estranged, and Dong Do gets involved in a big fight. He has a crush on Yeon Hee in the clique, and the friendship returns to him as fear of violence.

Dongdo, who is obsessed with movies, lives a satisfying life with friend-like mom, his only family. One day in high school, he befriends classmate Hyunseung and his bullying clique. Cigarettes and harsh words belch out of their mouths like smoke, and friendship engaging violence gradually draws him in. Meanwhile,his crush Yeonhee, a popular girl in the clique, has directions of arrows of admirers. Determined, he writes her a love letter, which discloses the arrow's potential and returns to him as a fear for violence.