As of early 2026, the series is available in over . While official English physical releases are limited, the series remains highly popular on digital manga platforms and is a frequent topic of discussion among fans tracking the latest Japanese releases.
The narrative follows , a kind-hearted 17-year-old whose life is shattered when her dormant Medusa Syndrome is triggered during a traumatic assault. Accused of multiple murders, she is sent to Haguro Prison , a specialized island facility for Medusas. The Significance of Chapter 250
By the time the manga hit Chapter 250, the story had transitioned from a survival-based prison drama into a complex political and scientific conspiracy.
The prison is revealed to be a front for a shadowy corporation experimenting on inmates to create elite assassins by activating "mirror neurons" associated with famous murderers.