Mayumi Himura is a first-year student at Seikan High School and plays as a centre forward for the school's soccer team. He has long black hair and black eyes, standing 1.73 meters tall and weighing 62 kilograms. Himura is a fast, goal‑hungry striker with a flair for dramatic play. His personality is described as hot‑headed, competitive, combative, and cocky. As the lone centre forward in Seikan’s 4‑5‑1 formation, his primary focus is to score as many goals as possible, and he dislikes anything that distracts from that objective. On the pitch, his explosive sprints and chaotic goal celebrations make him a memorable presence. He also has a festival‑loving side off the field.

Himura’s role in the story is that of a key offensive weapon for Seikan, whose rapid pace perfectly complements the playmaking of the team captain, Gen’ichiro Taira. A notable subplot involves his heated rivalry with fellow first‑year Jin Kazama; the two compete to prove which of them is the superior young talent. This rivalry pushes both players to improve. Beyond that competitive dynamic, Himura is shown to be fiercely dedicated to winning and to his own scoring ability. His development, while not extensively explored in the anime, centers on learning to channel his individualistic style within the team’s collective strategy. Notable abilities include his outstanding sprint speed, sharp goal‑scoring instincts, and the capacity to energise his teammates with his energetic and sometimes over‑the‑top celebrations.