Irimi Tokugawa, a formidable presence within the dangerous Tokugawa Clan, possesses supernatural abilities that once unleashed havoc upon Japan, orchestrating mass genocide with ruthless precision. Confined in an anti-magic glass cell, her cold, predator-like gaze reflects a past devoid of remorse. As the wife of Manabu Tokugawa, the Sadistic Monster Hunter, and the mother of Itachi, Akira, and Shoko, her legacy intertwines with a family of formidable individuals.