Ji-su is a 19-year-old boy who wanders the streets of Itaewon until he finds someone to pick a fight with. Once a promising boxing rookie, he is now just a troubled youth carrying pain too heavy for his age. One day, he meets Ji-won at a bar and falls in love with her at first sight. As Ji-won gradually opens her heart to him, Ji-su dares to believe in something like hope – but the past has a way of catching up, just when love begins to feel real.