Senkan Seiki is presented in a dynamic mid action pose inspired by Kantai Collection ship girl design. The figure wears a crisp navy blue sailor style uniform with white trim, a small red neckerchief, and gold insignia on the collar. Her hair is styled in long deep indigo locks that cascade around her shoulders, accented with a metallic hair clip shaped like an anchor. The sculpt highlights detailed mechanical elements at the waist and shoulders, including riveted panels and tiny port holes, while a compact deck gun is integrated into the forearm. Subtle weathering and glossy finishes give a seaworn, battle ready appearance, enhancing the figure's realism.

In the Kantai Collection universe, Senkan Seiki is one of the ship girls who carries the spirit of her original vessel into battle. As a member of the Kantai fleet, she embodies engineering resilience and tactical precision. Created by the Kyoukai Kishidan line of vessels, she is designed to optimize anti air defense and rapid fire support. Her backstory involves being built from an older battleship concept and reactivated for modern warfare, earning a reputation for steady drills and meticulous maintenance. She is known for her calm, disciplined demeanor, loyalty to teammates, and willingness to shoulder heavy tasks during night actions and storms. Her character emphasizes perseverance, attention to detail, and loyalty to the fleet.