Sengo Muramasa

Forged by the first-generation Muramasa (Senko Muramasa), this uchigatana is a blade built for actual combat, possessing a terrifyingly keen edge.

Does his mysterious demeanor stem from his history—specifically, the long-held perception of him as a "cursed blade"? He is also a source of constant worry for Tonbokiri, a fellow member of the Muramasa school.