An energetic second-year student who is Ryuko's classmate and best friend. She immediately befriends Ryuko upon the latter's arrival at the school. Mako lives with her parents and younger brother in the slums of Honnō City. She is described as an "uber air-head" whose "unbelievable actions never cease to shock and awe the people around her." Despite putting herself in dangerous situations, she has a good heart and cares for Ryuko, providing her with constant encouragement. Senketsu notes that Mako is vital for getting Ryuko to relax.
She receives a two-star Goku Uniform styled like that of a delinquent.
Mako encourages Ryuko in the final battle by promising to go on a date with her and kisses her while doing so. The final scene of the episode shows Ryuko and Mako going out on a date.