A heist has gone wrong, leaving the members of the PKST scattered. While most of the crew has been captured and thrown into a high-security prison, one member, Torazo, remains on the outside. The story follows the imprisoned members, Peinto, Kuronoa, and Sinigami, as they navigate the dangerous and complex social hierarchies of the jail, all while plotting their escape. The core conflict revolves around whether Torazo can successfully orchestrate a breakout from the outside before the trio is lost to the system forever.

The central characters are the incarcerated members of the PKST crew. Peinto, Kuronoa, and Sinigami must rely on their unique skills to survive inside. Their fate is tied to Torazo, the sole free member, who works from the outside to find a way to break them out. The manga focuses on their collective struggle against the prison authorities and the various criminal factions they encounter within the walls.

The primary setting is the prison itself, a confined and oppressive environment that forces constant conflict and uneasy alliances. This location establishes a tense atmosphere where survival is a daily challenge. The narrative is driven by the prisoners' attempts to endure the harsh conditions while gathering the resources and information needed for a successful breakout. The series is serialized in Comic Flapper and Comic Alunna, with ten volumes released to date. The tone blends action and drama, focusing on the high-stakes game of cat and mouse between the incarcerated crew, the guards, and the outside world. Notable narrative arcs likely center on the initial heist that led to their capture, the internal power struggles within the prison, the formation of alliances with other inmates, and the various phases of their elaborate escape plan. The story explores themes of loyalty, desperation, and the limits of friendship under extreme pressure.