The Masamune is a high-tech katana with a sleek, futuristic design, featuring a razor-sharp mono-molecular edge that glows faintly with a neon blue hue. Its handle is wrapped in black synthetic leather with red circuit-like patterns, and the guard is a minimalist, angular piece of polished black metal with subtle engravings. The blade itself is slightly curved, mirroring traditional katanas but with a more refined, aerodynamic profile suited for cyber-enhanced warriors.