Wandering around the streets, Sejin, a pregnant teen, gets to know Juyeong and reunites with Jaepil and Sinji. The four musketeers go through a series of misfortunes, bumping into masochistic/sadistic characters and experiencing the brutality and cruelty of the world. Nevertheless, their naivety and pureness to endure through the hardships of life will stir complex emotions that will question your judgment.