Shigurui: Death Frenzy is a brutal samurai tale set in 17th century Japan. The story begins with an annual tournament at Kogan Palace, where master swordsmen compete with live blades, instantly shocking the audience when one competitor, Fujiki Gennosuke, is revealed to be a blind man in a wheelchair. The narrative then flashes back to explore the bitter rivalry between Gennosuke and Irako Seigen, two disciples of the powerful Iwamoto Kogan, who both seek to become the successor to the Kogan ryu style—a deadly school teaching a technique that kills with a single stroke. The story is a grim, bloody spiral of obsession, betrayal, and vengeance. Readers enjoy it for its unflinching, hyper-violent realism, psychological depth, and the visceral way it deconstructs samurai honor, portraying the pursuit of martial perfection as a path to madness and destruction.