A young woman wakes up in a dark, filthy, and dangerous underground realm known as the Land of Mud. This desolate place is the final destination for souls whose bodies have been stolen by beings from another world. The rightful owner of such a stolen body is the tyrannical princess Asuna of the kingdom of Kolt. When a woman from the modern world dies and is reincarnated into Asuna's body, the princess's personality is abruptly replaced, and she becomes a benevolent and beloved ruler. The true princess, now displaced, awakens in the squalid Land of Mud alongside other victims of possession. Stripped of her identity, status, and physical form, the former tyrant must survive in this harsh underworld and find a way to take back the life that was stolen from her.

The setting is a surreal and oppressive dystopia, a purgatorial space where lost souls struggle against both supernatural forces and each other. The narrative follows the deposed princesss revolution against the circumstances of her erasure. Her journey is one of survival, but also of internal transformation, as she must confront her own past tyranny while navigating a realm filled with other displaced souls and the threats of a world that has forgotten her. The story is a dark fantasy that explores themes of identity, power, and resilience. Hamachi Yamada launched the manga in August 2024, with the story approaching its conclusion in 2026.