Luka Millfy is a main character in the tokusatsu series Kaizoku Sentai Gokaiger. As Gokai Yellow, she is the team's agile and resourceful yellow ranger. Luka is known for her sharp wit, street smarts, and a tomboyish, bold personality. She comes from a rough background and is motivated by the desire for wealth, but her loyalty to her friends and strong sense of justice shine through. Luka's combat skills and quick thinking make her an invaluable member of the Gokaiger team.