Sansei Muramasa stands in a poised, commanding stance that captures the moment just before action. The Omatsuri version from Yamiyo no Hikari presents her in ceremonial festival attire blended with her signature armor: lacquered plates in midnight blue edged with gold trim, layers of crimson fabric that ripple as if caught in a breeze. She wears a long, flowing sash and a miniature lantern crown, and her katana rests at her hip with a blade that gleams under soft light. Detail from the sculptor emphasizes weathered textures on the armor, delicate engravings on the sheathe, and tiny beads along the tassels. The base features festival motifs—floating lanterns, cherry blossom petals, and a carved stage-like plinth—that complement the character’s aura of disciplined power. The paintwork balances matte fabric textures with glossy metallics to create a vivid, collectible presentation.

Sansei Muramasa is a title character in the world of Soukou Akki Muramasa, a realm where blades awaken with memories and loyalties. Born under a rare celestial omen, she inherits the Muramasa blade lineage, a weapon said to mirror the heart of its wielder. Throughout her journey, she wrestles with the blade’s call to power and its obligation to protect the weak. In the Omatsuri arc, the festival season becomes a stage for trials that reveal her strategic mind, resolve, and willingness to sacrifice personal gain for the greater good. Allies test their bonds, rival factions scheme in the shadows, and a looming threat forces her to reconcile ancient code with new allies. By the end, she unveils a core that unity through discipline and compassion can tame even the fiercest steel.