The figure presents Yowane Haku in a poised, dynamic stance that captures both fragility and resolve. Her hair is sculpted in long, flowing strands that cascade to her knees, with subtle motion lines that suggest a gentle breeze mid-performance. She wears a layered outfit that blends gothic and idol fashion: a high-collar blouse with ruffled cuffs, a pleated skirt, and knee-high socks with lace trim. Fine details such as a bow at the waist, a delicate choker, and tiny accessory pins catch the light. The overall paintwork uses a restrained monochrome palette with soft shading to emphasize facial expression and fabric folds. The base is simple yet elegant, featuring engraved motifs that complement the character's somber mood without overpowering the figure. The sculpt balances a sense of motion and stillness, making it suitable for display in a collection focused on Vocaloid figures.

Yowane Haku is portrayed as a gentle, melancholic vocalist whose voice carries stories of longing and resilience. In the broader Vocaloid universe, she is often imagined as an underdog artist who pours every ounce of emotion into song, despite the doubts that linger in her heart. Her plotline centers on finding confidence through performance, overcoming stage fright, and forming connection with fans who hear sadness mixed with hope in her melody. Fans frequently describe her as a character who embraces vulnerability as a strength, turning personal pain into art. This narrative arc emphasizes friendship with other Vocaloids, personal growth through practice, and the idea that music can heal loneliness. In many fan stories, Yowane Haku continues to refine her craft, seeking to touch listeners with honest, heartfelt performances while navigating the complexities of fame and self-acceptance.