What is the name of Zenitsu's sword?

In the anime and manga series "Demon Slayer: Kimetsu no Yaiba," the character Zenitsu Agatsuma wields a sword called the "Nichirin Blade." However, the sword itself doesn't have a specific individual name. The emphasis in the series is usually placed on the user's skills, techniques, and abilities rather than naming individual swords. Zenitsu's sword is depicted with a silver blade and a yellow hilt, matching his character design.

How accurate is the design compared to the anime?

The design of this Nichirin replica draws directly from Zenitsu Agatsuma's sword as depicted in Kimetsu no Yaiba. The most defining feature - the full-length yellow blade - is faithfully reproduced, along with the tsuba (hand guard) shape and tsuka (handle) proportions that anime viewers will immediately recognize. The hilt wrapping follows the aesthetic detail visible in official character artwork, and the overall blade geometry reflects the katana silhouette associated with Zenitsu's style. While no mass-produced replica can claim 100% screen-accurate tolerances, this piece is designed specifically for display and collector fidelity rather than generic anime merchandise aesthetics.

How does 1045 carbon steel compare to stainless steel for display swords?

1045 carbon steel contains roughly 0.45% carbon by weight, giving it a measurably harder surface than the 420-grade stainless steel commonly used in entry-level anime replicas. In practical display terms, this means a finer polish, a more convincing hamon line (if present), and a blade that holds its finish longer under normal indoor conditions. The trade-off is that carbon steel requires occasional oiling to prevent surface oxidation, whereas stainless steel is more forgiving in humid environments. For a collector focused on authenticity and long-term display quality, 1045 carbon steel is the preferred choice - it's the same material specification used across the full Hashira Nichirin replica lineup on this site.

What steel is used in Zenitsu sword replicas?

The Zenitsu Nichirin replicas in this collection are forged from 1045 carbon steel, a medium-high carbon alloy that sits at roughly 0.45% carbon content by weight. This grade is a practical choice for collectible swords: it is hard enough to hold a defined edge geometry and take a consistent surface finish, yet workable enough to be shaped into the clean, uncluttered blade profile that accurately reflects Zenitsu's katana from Kimetsu no Yaiba. The steel is significantly denser and more structurally credible than the zinc alloy or stainless steel used in lower-grade anime replicas, making it a meaningful step up for collectors who want a piece that holds up to long-term display without warping or developing surface fatigue.

Is Giyuu sword black?

Updated Sep 2021

No, Giyu Tomioka's sword, known as a Nichirin Blade, is not black. The color of Giyu's Nichirin Blade is a light teal or turquoise, often described as a water-like color. The blade itself is a bright shade of blue-green, while the hilt and guard are silver. The specific color of Giyu's sword is consistent with his water-based Breathing Technique and serves as a visual representation of his abilities.