Based on the Kabaneri series, this Mumei figure is presented in a festive Santa ver. The figure is sculpted with attention to the character's iconic silhouette, featuring a compact, dynamic pose that suggests motion. The Santa outfit adds seasonal color to her typical attire, with a red coat trimmed with white faux fur, a hood or hat, and matching boots. The figure captures fine details such as layered clothing folds, a sturdy base, and crisp paintwork on the accessories. The scale is 1/7, resulting in a sizeable display piece with a statue-like presence. The craftsmanship emphasizes high-detail face, hair strands, and the contrast between the white fur and red fabric. The overall presentation blends anime style with holiday charm, creating an eye-catching centerpiece for shelves or display cabinets.

Mumei is introduced as an exceptionally gifted young Kabaneri, a warrior bound to protect people during the Kabane crisis. Raised with a strong sense of duty, she joins the crew on the armored steam train Koutetsujou, testing her confidence and skills against relentless threats. Throughout the series, her enigmatic demeanor gradually reveals her fear of losing those she cares about and her uncertain past. She forms bonds with Ikoma and others, learns to trust her allies, and negotiates the balance between her fierce independence and the responsibility she bears as a protector of humans in a world under siege.