What makes Rengoku's Nichirin blade unique among Hashira swords?
Updated Feb 2026
Rengoku's blade is distinguished by several design elements rooted directly in Demon Slayer canon. The blade itself features a flame-shaped hamon pattern along its edge and a vivid red coloring that signifies its wielder's mastery of Flame Breathing. The tsuba is crafted in a stylized flame silhouette, setting it apart from the geometric or nature-themed guards carried by other Hashira. Our replica reproduces these details faithfully, including the traditional white and red handle wrapping pattern Rengoku carried into his final encounter. The scabbard is finished in a deep red lacquer tone consistent with the anime depiction, making the full ensemble immediately identifiable to any fan of the series.