Presented as the Okami ver. of Oyama Mahiro, this figure captures a lively blend of charm and feral elegance. The figure features Mahiro in a dynamic pose, with one hand raised as if releasing a spell and the other at her hip, suggesting confident mischief. The wolf-inspired design elements are evident in the fur-textured sculpt on the sleeves and hood, subtle wolf-ear accents, and a flowing cape that swirls behind her. Colorwork emphasizes a cool palette of midnight blues, charcoal blacks, and touch of white to mimic moonlit fur, while her school uniform remains neatly detailed. The base hints at forest terrain, with carved bark textures and subtle moss accents.

Within the Onii-chan wa Oshimai! narrative, Oyama Mahiro finds herself suddenly transformed into a girl after a spell cast by her sister Shoko, forcing her to navigate a world that treats her differently. The character's journey centers on adapting to new clothes, new social dynamics, and the awkward yet endearing moments of cross-dressing life while still retaining a core of stubborn curiosity and resilience. In the Okami ver., the wolf motif echoes her growing sense of independence: she stands taller, faces challenges with a sharpened gaze, and protects her sister and friends with a quiet, pack-like loyalty. Throughout the series, Mahiro learns to balance humor with responsibility, discovering inner strength she never knew she possessed.