Naka operates as a Sendai-class light cruiser alongside Sendai and Jintsuu at the naval base. She enthusiastically embraces the role of "the fleet's idol," consistently using the third-person "Naka-chan" and peppering her speech with entertainment industry jargon like "off days" and "backstage." This persona stems from her hull number (No. 48) echoing the idol group AKB48, a link she actively highlights during introductions and battle cries. Her personality radiates high energy and a dedication to cuteness. She champions "Naka-chan's smile!" and laments skin damage during deployments ("My skin gets all rough on location~"). Interactions frequently involve her declaring she "belongs to everyone," directing gift-giving through official channels, and treating equipment upgrades as boosts to her appeal ("Naka-chan, power up!"). This theatrical approach extends to combat, where she announces herself as "the centre" during night battles, framing fights as performance highlights. Beyond combat, Naka supports base operations. She assists in training newer destroyers, focusing on confidence-building. Her duties include schedule management, notifying the admiral about work communications, and overseeing expedition preparations. She describes logistical tasks like delivering supplies using terms such as "craft service." Naka's capabilities advance through remodeling. Starting with basic 14cm guns, modifications enhance her firepower, torpedo efficiency, anti-aircraft defense, and anti-submarine warfare (ASW) capabilities. Her Kai Ni remodel significantly boosts her ASW stat and overall combat effectiveness, enabling her to equip specialized gear like the Type 21 Air Radar. Specific equipment combinations, such as certain radars or guns paired with her, grant additional stat bonuses like improved accuracy or evasion. Elements inspired by her real-world history appear in her dialogue. She references serving as flagship for the 4th Destroyer Squadron and conducting transport missions between Truk and southern regions, dismissing suggestions these were merely "provincial tours." Across official portrayals, her core remains consistent: an unwavering commitment to her idol identity intertwined with her duties as a light cruiser. She maintains her cheerful, performance-focused attitude during both routine base activities and combat operations, consistently framing challenges through the lens of entertainment and fan service.