Maru is a main character in Beyblade: Shogun Steel, serving as a Beyblade mechanic and data collector. She is a young girl with short pink hair and large violet eyes, typically seen wearing goggles atop a brown hat, a cream-colored vest with yellow pockets, and a pink jumpsuit adorned with blue and red badges. Her role in the story is that of a junior technician who assists the main bladers by collecting and analyzing battle data, often working under the guidance of Madoka Amano, whom she refers to as boss or chief. Maru does not own her own Beyblade and participates primarily as a supportive off-field presence, but she is deeply enthusiastic about the sport, displaying a hot-blooded and confident personality. She sometimes speaks in the third person, especially in the English dub. Her motivations revolve around helping others improve and understanding the mechanics of Beyblade. She is closely associated with the main bladers, including Zyro Kurogane and Shinobu Hiryuin, and is frequently seen observing their battles alongside Madoka. While she does not undergo a major personal transformation across the series, her knowledge and confidence as a data collector grow as she gains more experience. Notable abilities include her technical expertise in Beyblade parts and performance metrics, as well as her keen observational skills during matches. She embodies the role of a dedicated junior mechanic who supports her team with passion and reliability.