Battleship Girl

Yukikaze is a young girl who, along with her friends Isokaze, Nowaki, and Takao, is part of Seiran Team 3 at the Wadatsumi naval base. They attend a naval academy and serve as the country's naval force, each girl acting as a living weapon capable of moving swiftly across the ocean and engaging in combat with built-in artillery. During an attack by an enemy nation targeting a key strategic location, the team is overwhelmed, leaving Yukikaze as the sole survivor. Just as the situation appears dire, a woman named Taiwa arrives with a secret weapon to aid in the defense of Yukikaze and the base.