Sirius is a character from the mobile game and anime series Azur Lane, which features personified battleships known as shipgirls. Sirius is a member of the Royal Navy faction and takes on the role of a light cruiser. She is characterized by her earnest and loyal personality, always striving to serve her commander to the best of her abilities. Her design includes a maid outfit, reflecting her role as a dutiful and elegant attendant. As a shipgirl, she plays a supportive and combat role, contributing to the strategic battles in the series.