Haruna stands in a poised battle-ready stance, her navy-blue admiral's uniform rendered with crisp lines and subtle metallic accents. The sculpt captures the shipgirl's sturdy frame and confident bearing, with carefully detailed armor plating along the shoulders and chest that hints at her battleship heritage. Her long hair flows behind her in a windswept wave, accented by a small, seagreen scarf and brass buttons. The paintwork emphasizes contrast between matte navy fabrics and glossy metal, while waterline effects at her base evoke the sea she defends.

Within the Aoki Hagane no Arpeggio universe, Haruna serves as a steadfast backbone of the fleet, embodying loyalty, discipline, and protective leadership. As a living avatar of a traditional battleship, she navigates complex battles with a calm, strategic mind, often mediating tense misunderstandings among the mental models. This figure presents Haruna in a dignified pose that reflects her resolve to safeguard her comrades and innocent vessels alike. Her character arc explores themes of duty versus individuality, teamwork across a coalition of ships, and the weight of command during high-risk engagements on stormy seas and shadowed waters.