This Onii-chan wa Oshimai! Oyama Mihari figure from Vivit captures the character’s lively personality with a dynamic pose and a carefully sculpted expression. The figure presents Mihari in her signature outfit from the series, featuring clean lines and crisp detailing that bring out the playful charm of her character. The paintwork emphasizes the contrasts between hair, clothing, and accessories, with subtle shading to enhance depth. The base is designed to be compact yet sturdy, ensuring stability while keeping the focus on Mihari. Every curve and edge is finished with a high-quality touch, producing a presence that stands out on any shelf or display case. The overall aesthetic blends fan-favorite appeal with a refined, collector-grade finish.

In the story Onii-chan wa Oshimai!, Oyama Mihari is portrayed as a spirited, clever sister whose actions spark the main premise and a series of playful misadventures. The character plot centers on her relationship with her brother and the consequences of their inevitable adventures. Mihari's bold personality and mischievous streak drive many of the show's comedic moments, while her genuine care for family keeps the tone heartwarming. Through her schemes and challenges, the series explores growth, responsibility, and the quirky charm of everyday life in a family that balances humor with affection. This figure captures those traits in a single collectible statue, making a bold statement for fans.