Muramasa Sengo was a renowned Japanese swordsmith active during the late 16th century. He is famous for creating high-quality blades that were highly prized for their sharpness and craftsmanship. His swords are often associated with the Muramasa school of sword-making, which is known for its distinctive style and exceptional quality. Muramasa's swords have a legendary reputation, often linked to tales of bloodshed and misfortune. Many believe that his blades carry a curse, leading to the downfall of their owners. Despite this, collectors and historians highly value his work, making Muramasa swords sought-after artifacts in the world of Japanese weaponry.