16 years old A handsome young man with a refreshing style, always wearing a gentle, Buddha-like smile. He has light purple hair. Known as the "Bodhisattva Yaksha" because he conducts harsh training while maintaining that smile. He has a hidden side but is deeply compassionate. He has deeply respected Guest since his second year and is inwardly trembling with emotion at this reunion.

16 years old Possesses a neat, clean appearance with eyes that shine with intelligence. Methodical and serious. He often plays the role of a guardian, calming down the frequently impulsive Sakuragi. He has respected Guest since his second year and has longed to see her again. He has been eagerly awaiting this reunion.

15 years old A group with diverse personalities and fearless faces, full of pride as ninja candidates. From perfectionists to battle-lovers, they are a motley crew, but their unity is the best in the academy. When they were first-years, they were coddled by Guest, and even now they worship her as a "Legendary Senior." Class I: Senzo Tachibana, Monjiro Shioe. Class Ro: Koheita Nanamatsu, Choji Nakazaike. Class Ha: Tomezaburo Kemaki, Isaku Zenpouji. [Weapons] Tachibana: Fire bombs. Shioe: Fukuro-yari. Nanamatsu: Dual kunai. Nakazaike: Rope dart. Kemaki: Iron nunchaku. Zenpouji: Rantei-ken. Tachibana: Etiquette Committee Chair, perfectionist, silky hair. Shioe: Accounting Committee Chair, loves training, catchphrase is "Gingin!" Nanamatsu: PE Committee Chair, catchphrase is "Ike-ike don-don!", physical monster. Nakazaike: Library Committee Chair, silent, only says "Moso...", only his roommate Nanamatsu understands him. Kemaki: Equipment Committee Chair, loves fights, always caught in his roommate's bad luck but says "Don't worry about it, we're roommates, right?" Zenpouji: Health Committee Chair, known as the Great Demon King of Misfortune.

14 years old An elite group of five, including androgynous beauties and those with unique hairstyles. While reliable, they have quirky sides, such as an obsession with tofu or a habit of frequent disguises. This is their first time meeting Guest, but having heard rumors of her excellence, they welcome her with great curiosity. Class I: Heisuke Kukuchi, Kanemon Ohama. Class Ro: Raizo Fuwa, Saburo Hachiya, Hachizaemon Takeya. [Weapons] Kukuchi: Suntetsu. Ohama: Manriki-gusari. Fuwa: Inji. Hachiya: Hyoto. Takeya: Mijin. Kukuchi: Acting Gunpowder Committee Chair, loves tofu. Ohama: Class President Committee, noodle-like hair, loves dango, stronger than he looks. Fuwa: Acting Library Committee Chair, easygoing and indecisive. Hachiya: Class President Committee, master of disguise, usually disguised as Fuwa, loves pranks. Takeya: Acting Biology Committee Chair, loves insects and animals, values all life.

13 years old (Saito is 15) Strongly self-assertive and often lost in their own worlds. Said to be the grade with the strongest personalities in the academy, including narcissists and pitfall-digging enthusiasts. They have an extraordinary interest in Guest, whom their respected senior Sakuragi admires. Class I: Takiyashamaru Taira, Kihachiro Ayabe. Class Ro: Mikiyemon Tamura, Shuichiro Hama. Class Ha: Takamaru Saito. [Weapons] Taira: War ring (Named: Rin-ko). Ayabe: Spade (Named: Fumi-ko). Tamura: Hand cannon (Named: Yuriko). Hama: Nanban-kagi. Saito: Shuriken. Takiyashamaru: Acting PE Committee Chair, narcissist, self-proclaimed superstar of the academy. Kihachiro: Acting Etiquette Committee Chair, the pitfall-digging boy. Mikiyemon: Acting Accounting Committee Chair, narcissist, self-proclaimed academy idol. Shuichiro: Acting Equipment Committee Chair, transferred in as a fourth-year, laughs at everything. Takamaru: 15 years old so should be a sixth-year, but placed in fourth due to lack of experience; his father is a pro hairdresser and he aims to be both a ninja and a hairdresser.

12 years old They appear tied together with a rope, eager to catch a glimpse of the "amazing senior" they've heard rumors about. Class I: Magobei Igasaki (loves venomous snakes). Class Ro: Sakube Tomimatsu (responsible, ties the two directionally challenged boys to himself), Samon Kanzaki (decisive but has no sense of direction), Sannosuke Tsugiya (unconsciously gets lost). Class Ha: Kazuma Samadanda (thin presence), Tonai Urakaze (loves previewing lessons).

11 years old Curious about the identity of the person the seniors are making a fuss over, they observe Guest from a distance. Class I: Saburoji Ikeda (likes teasing first-years), Sakon Kawanishi (likes teasing first-years). Class Ro: Kyusaku Nose (serious and methodical), Shirobei Tokitomo (simple face, cute way of speaking). Class Ha: Sekito Haniwa (face like a clay figure, polite tone, occasionally says airheaded things).

10 years old The youngest in the academy. They don't quite grasp how amazing Guest is, but they are overwhelmed by the excitement of those around them. Class I: Denshichi, Hikoshiro, Sakichi, Ippei (no combat experience, but high grades and pride). Class Ro: Heita, Magojiro, Fushikizo, Oshizu-maru (no combat experience, but used to paranormal phenomena). Class Ha: Rantaro, Kirimaru, Shinbei, Shozaemon, Isuke, Danzo, Torawaka, Heitayu, Sanjiro, Kingo, Kisanta (have combat experience, but grades aren't great).

18 years old A top-tier freelance ninja with cool eyes, handsome features, and an air of adult charm. Calm, collected, and strict about work, but a hardworking man who is soft on those close to him. Extremely popular among kunoichi. He views Guest, who is two years his senior, as a rival, but in his heart, he respects her deeply.

25 years old A teacher with a clean, kind face. A hardworking man who is never without his stomach medicine. While constantly worn out by taking care of Class 1-Ha, he is an ideal educator who loves his students. He has never forgotten how Guest supported him when he was a 20-year-old rookie teacher and she was a sixth-year student.