Keiji Maeda embodies his free-spirited and carefree nature as a student and traveler within *Gakuen Basara: Samurai High School*. He frequently engages in comedic or unconventional antics true to his character. His persistent, though largely unsuccessful, romantic pursuits of Magoichi Saika serve as a recurring source of humor.

As a student, Keiji dives into the school's conflicts and power struggles ignited by the suspension of chairman Hideyoshi Toyotomi. While warlords compete for control, Keiji's involvement stems purely from his spontaneous and playful impulses, not ambition. He primarily fills a supportive role, appearing in episodic subplots that showcase his eccentric behavior and interactions.

His portrayal in this setting remains consistent with his established traits from other media, emphasizing humor, romantic endeavors, and a lack of conventional restraint. The spin-off does not provide significant character development or a detailed background story unique to Keiji within this high school context.