Hotarumaru is depicted as a compact yet commanding figure, balancing poise and speed in a single frozen moment. The sculpt emphasizes clean lines and layered garments, with subtle shading that reveals every fold and panel. The outfit blends traditional kimono-inspired elements with battle-ready details, including a short haori, wrapped sash, and small metallic accents along the edges. The blade is sheathed at his side, its tsuka wrapped in a dark cord and a gleaming tsuba that catches light from the display. The color palette features deep navy, ivory, and gold highlights, contrasted by a glossy, pale head and hands. The head sculpt conveys a focused, gentle expression, while hair is sculpted to appear wind-swept. The base is a circular pedestal shaped with stylized motifs that echo the Touken Danshi aesthetic, providing stability and a refined, compact presence on the shelf.

Hotarumaru's character in Touken Ranbu is presented as a loyal and quick-witted member of the Swords Team who carries a quiet confidence into every mission to safeguard history. Forged with unusual care and believed to be a blade that glowed with subtle light, Hotarumaru performs with a blend of nimble finesse and steady resolve. He tends to observe before acting, choosing his words carefully and offering patient guidance to newer blades. His interactions with fellow swords reveal a sense of camaraderie and a playful, teasing side that softens tense moments. Across episodes, Hotarumaru faces challenges that test his loyalty, temper, and focus, reminding teammates that even the smallest blade can shape the outcome of a great journey through time.