Two friends, Jung Jong-suk and Hwang Kyung-min, meet after several years and talk about their time in school, which left them scarred.

Sang-hoon is a lowlife gangster, a debt collector exercising thuggish ways to collect his money. The recipient of nothing but anger since his childhood, he expresses himself through violence. When he finally encounters someone who can stand up to him, feisty school-girl Yoon-hee they become unlikely friends.

Set in the near future around Shinjuku, Tokyo. Shinji got out from a youth detention center. Barikan suffers from stuttering and extreme shyness. These two men meet in a boxing gym. Shinji and Barikan become friends and pursue boxing under a hopeless situation.

Successful novelist and radio DJ Jang Jaeyeol and psychiatrist Ji Hae-soo are constantly at odds, but that changes when they start living in the same house.

A self-made medical student and an aspiring anchorwoman find their friendship — and their dreams — tested by a fateful tragedy.