Hitomi Minagawa, a 17-year-old Seitetsu Gakuin High School student, balances track and field commitments with leadership of the White Kämpfers, a faction born from a truce uniting former Red and Blue rivals under distinctive white bracelets. Her athletic physique and height set her apart among peers, while her Zauber-type magic channels precise light-energy blasts for combat, diverging from traditional elemental Kämpfer abilities. Self-described as a tomboy, she employs the pronoun "boku" and projects a confident, slightly cocky demeanor that masks her tactical acumen during clashes, such as a strategically planned skirmish against Natsuru Senō in her father’s Italian shop—a confrontation thwarted by unexpected allies.

Though initially shaped by her mentorship under Kaede Sakura, a pivotal figure in Kämpfer faction dynamics, Hitomi now spearheads the White Kämpfers as their frontline representative, coordinating conflicts with protagonist groups through direct yet calculated methods. Her green ponytail, blue-green eyes, and track uniform underscore her athletic identity, while a mysterious stuffed penguin—briefly glimpsed but undefined in purpose—hints at deeper ties to her role. Her narrative centers on navigating alliances, enforcing faction objectives, and clashing with rivals, all while maintaining a balance between bold leadership and unrefined strategic pragmatism.