Minori is a first-year student at Gessen Girls' Academy and a member of its elite shinobi squad. She bubbles with an extremely energetic and childish personality, consistently viewing her demanding shinobi duties as a form of play. This playful approach stems from a tragic past where her shinobi parents died on a mission, leading her to reject conflict in favor of improving the world through games. After their deaths, she was adopted and raised by Kurokage alongside Yumi, Murakumo, Yozakura, and Shiki, training through playful games like tag and hide-and-seek.

Physically, Minori possesses fair skin, long light brown hair tied in pigtails secured with green rings, and blue eyes featuring small yellow pupils. She is notably short, even shorter than Mirai, but has a well-endowed figure. Her typical attire includes an orange top revealing cleavage, white and orange striped stockings, pink boots adorned with red bows, and a large plush hamster backpack. She often carries a blue hamster-themed pail and wears a green choker with a bell.

Her story arcs emphasize her childlike outlook and pronounced sweet tooth. In *Shinovi Versus*, she participates in the Shinobi Battle Royale to confront Hanzō Academy following an incident involving Kurokage’s grave. During training, she defeats Shiki in a sparring match but chooses play over further instruction. A comical sidestory sees her panic upon discovering her sweets are missing, leading her on a "trick-or-treating" spree where she confronts multiple characters for candy. This ultimately results in her becoming Yomi’s apprentice after developing a fondness for chocolate-covered bean sprouts.

In *Estival Versus*, Minori bakes treats using an experimental medicine stolen from Haruka, unknowingly causing everyone who consumes them to speak with comical accents. She distributes these treats across multiple locations, triggering chaotic battles with affected characters like Haruka, Katsuragi, and Shiki. Only after encountering Hibari, Imu, and Kafuru does she realize the medicine caused the disruptions, though she remains unsure how to fix the situation.

During the "Festival Eve Full of Swimsuits" OVA, Minori travels with Gessen Academy to a spa resort. When Kuroku enemies attack and block Shinobi Transformations, she activates "Super Frantic Mode" alongside others, sacrificing her swimsuit for enhanced combat abilities to repel the threat.

Her character consistently balances innocence with loyalty, using playfulness to cope with loss while demonstrating determination to protect her friends. Her development includes moments of unintended mischief and gradual awareness of consequences, though her core belief in play over conflict remains unchanged.