Mutsu is a fictional character from the anime series Kantai Collection, which is based on a popular Japanese web browser game. Mutsu is portrayed as a battleship girl, representing the real-life World War II battleship of the Imperial Japanese Navy. She is known for her calm and collected demeanor, as well as her loyalty to her fleet. In the series, Mutsu plays a significant role as a key member of the fleet, often providing strategic insights and support during naval battles. Her character design includes elements that reflect her battleship origins, such as heavy armor and weaponry.