The Bocchi the Rock! - Ijichi Nijika figure captures Nijika in a dynamic on stage pose, balancing her drumsticks with a poised energy. She wears her distinctive school style outfit with a twist: a pleated navy skirt, a white sailor-collar blouse, and a cropped cardigan in warm, sunlit tones. The sculpt emphasizes Nijika's short, bobbed hair rendered with subtle shading to suggest movement under stage lights. Her drum kit features metallic accents and a compact kit with authentic cymbals, drums, and stands. The paintwork includes gradient blues and pink highlights, with careful weathering on the instrument and fabric to convey fabric folds and texture. The base is designed to resemble a small concert stage with a glossy finish that reflects the lighting.

Ijichi Nijika serves as the confident, dependable heartbeat of Bocchi the Rock. As the drummer in the Kessoku Band, she anchors the band's rhythm and keeps energy steady during performances, even when the rest of the group feels uncertain. Nijika faces the fear of failure but channels it into dedication, encouraging her friends, coordinating practice, and often stepping up to lead when others hesitate. Her background involves balancing school life with a growing musical dream, forming close bonds with her bandmates, supporting their friendship, and helping Bocchi express her feelings through music. Nijika's perseverance and warmth make her a steadying force for the group and a sincere friend to the audience.