This 1/6 scale figure captures Sansei Muramasa in a serene Onsen setting, surrounded by drifting steam and smooth stone accents. The sculpting highlights her flowing hair, which falls in dynamic strands and is secured with delicate ornaments that catch the light. She wears a kimono-inspired outfit rendered in soft, water-tinged tones, with a light robe that reveals layered undergarments and a hint of crimson obi. A subtle gloss on her skin contrasts with the matte finish of the fabrics, while the sword at her side gleams with a metallic sheen. The base includes a carved wooden onsen tub and a translucent water effect, creating a peaceful, almost meditative mood.

Within the Soukou Akki Muramasa narrative, Sansei Muramasa is the third generation bearer of the legendary Muramasa blade. Born into a lineage that bends between honor and blood, she carries the blade's weight with quiet resolve. After a fierce clash with a rival clan, she seeks purification and counsel at a sacred hot spring, believing the cleansing waters will temper the sword's restless spirit. As steam swirls around, the blade hums with ancient energy, whispering warnings and guidance. Sansei learns to align her own courage with the weapon's power, forging discipline, trust, and a sense of responsibility. This journey defines her character and enriches the world she inhabits.