Go Hae-jun runs away from home, while Baek Eun-yeong, a troubled student, ends up living in a tent with nowhere else to go. The two, who met by a twisted fate, end up living together in an abandoned old dormitory. Both hate the dormitory and each other, but with nowhere else to go, their difficult journey begins.
After her failed suicide attempt, the depressed teenager girl is sent to a prison school, where she grows close to a boy with Bipolar Disorder, forcing her to re-evaluate and find ways out to end her suffering.