Rendered in lifelike 1/1 scale, the Mumei figure captures a dynamic, battle-ready stance. The figure stands tall with one foot forward, her weight balanced on a rugged base that hints at the iron fortress walls. Her hair is sculpted in wind-swept strands that frame her determined face, and her almond eyes convey readiness and resolve. She wears a layered, combat-ready outfit with a long blue coat, white underlayer, and protective armor accents along the shoulders and forearms. The weapons are faithfully recreated with metallic painted blades, and subtle weathering adds realism. The cape-like sleeves flutter as if moved by an unseen breeze. The overall finish emphasizes sharp edges, clean lines, and a museum-quality display presence.

Mumei is a fierce young fighter reputed for her speed and cunning within the world of Kabaneri of the Iron Fortress. Raised amid conflict, she embodies independence and a stoic sense of duty, choosing to stand with Ikoma and the others to defend villages from the Kabane. Her backstory reveals both vulnerability and resilience, and her interactions with allies reveal evolving trust and camaraderie. Though she appears fearless, she battles inner doubts and the gravity of the ongoing war. Through her eyes and actions, the series explores themes of freedom, loyalty, and the cost of survival in a world overrun by monstrous creatures and splintered communities. Mumei's journey shapes much of the rebellion's hopeful future.