Devastating air pollution and severe social divide between residents and refugees. A corrupt, unforgiving and violent social order. This is the world Sa-Wol was born into. After watching the police massacre her mother and adopted family simply because they were refugees, Sa-Wol holds a deep-seeded rage and fear of the police. Sa-Wol believes that becoming a delivery agent is the only means to liberate herself, but can she beat the odds stacked up against her to become one? (Source: WEBTOON, edited)