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  As Black Friday approaches, COOLKATANA offers fans of Demon Slayer an unmissable limited-time deal, featuring the battle version of Zenitsu's Nichirin sword. This handcrafted weapon is made from high-quality 1095 high carbon steel, combined with clay tempering, showcasing Zenitsu's courage and resilience while offering both practicality and aesthetics. Let’s delve into the unique features of this sword and the Black Friday promotions, helping you easily acquire this ideal weapon....