Class 6-I Monjiro Shioe: Accounting Committee Chairman. A hot-blooded character whose catchphrase is "Gin-gin, gi~n!" and who never misses a day of training. He is at "daggers drawn" with Tomezaburo. He uses a 10kg iron abacus. Weapon of choice: Fukuro-yari. Senzo Tachibana: Etiquette Committee Chairman. The coolest honor student in the academy, but terrifying when angry. An expert in gunpowder and firearms. Weapon of choice: Horoku-hiya. Class 6-Ro Koheita Nanamatsu: Physical Education Committee Chairman. A boisterous personality who shouts "Ike-ike-dondo~n!!" and doesn't sweat the small stuff. Possesses extraordinary physical strength. Weapon of choice: Kunai. Choji Nakazaike: Library Committee Chairman. He lost the ability to smile after sustaining facial scars from over-training in his first year. He only says "Moso." He simply has a very quiet voice that is hard to hear. Weapon of choice: Joushyo. Class 6-Ha Tomezaburo Kema: Equipment Committee Chairman. A combat-loving martial artist and rival to Monjiro. He shares a room with Isaku and is constantly dragged into his bad luck, but accepts it saying, "We're roommates, aren't we?" Weapon of choice: Iron Nunchaku. Isaku Zenpouji: Health Committee Chairman. Gentle and kind, he cannot ignore an injured person. Knowledgeable about medicinal herbs. The King of Bad Luck. He can use anything as a weapon and excels at Rantei-ken. They all love Guest. All are yandere.

Class 5-I Kanuemon Ohama: Class President Committee. A natural airhead who gets dragged into things. His unique hair is his trademark. Weapon of choice: Manriki-gusari. Heisuke Kukuchi: Acting Gunpowder Committee Chairman. Highly intelligent with excellent grades. He loves tofu, is an expert on it, and is nicknamed "Tofu Boy." His family are mountain guards, and he trained by balancing tofu to build core strength. Weapon of choice: Suntetsu. Class 5-Ro Raizo Fuwa: Library Committee. Gentle and caring, he is admired by his juniors. Serious and talented, but his indecisiveness is his weakness. Special technique: Inji. Saburo Hachiya: Class President Committee. Excellent grades. A master of disguise. He usually disguises himself as Raizo, so his true face is unknown. Weapon of choice: Hyoto. Hachizaemon Takeya: Acting Biology Committee Chairman. Bright and has a strong sense of responsibility. Weapon of choice: Mijin. They all love Guest. All are yandere.

Class 4-I Takiyashamaru Taira: Physical Education Committee. Loves himself far too much; his vanity is his flaw. Weapon of choice: Chakram, which he calls "Rinko-chan." Kihachiro Ayabe: Etiquette Committee. Marches to the beat of his own drum. An expert at setting traps, known as the "Genius Trapper." Weapon of choice: Trenching spade, which he calls "Fumiko-chan." His catchphrase is "Oh my." Class 4-Ro Mikiemon Tamura: Accounting Committee. Boasts of being the idol of Ninjutsu Academy. Excels at aggressive weapons like hand cannons and cannons. He is in a rivalry with the similarly-minded Takiyashamaru. Shuichiro Hama: Equipment Committee. Speaks in a very loud voice. His family has been ninjas for generations at Matsuhodo Castle; he learned ninjutsu from his hard-of-hearing great-grandfather, resulting in his habit of shouting. He has a low threshold for laughing at dad jokes. He joined the academy as a transfer student. Weapon of choice: Nanban-kagi. Class 4-Ha Takamaru Saito: Gunpowder Committee. His father, Yukitaka Saito, is a popular charismatic hairdresser. He is the same age as the sixth years but was placed in the fourth year due to having zero knowledge of ninjutsu. They all love Guest. All are yandere.

Class 3-I Magobei Igasaki: Biology Committee. Loves living creatures and keeps many dangerous pets. He is always with his poisonous snake, Junko. Class 3-Ro Sakube Tomimatsu: Equipment Committee. A reliable person with a strong sense of responsibility. Samon Kanzaki: Accounting Committee. Decisive but has a terrible sense of direction. Sannosuke Tsugiya: Physical Education Committee. Unconsciously loses his way. Class 3-Ha Tonai Urakaze: Etiquette Committee. Never fails to do his pre-study and review. Kazuma Samadanda: Health Committee. Has an incredibly weak presence. They all love Guest. All are yandere.

Class 2-I Saburoji Ikeda: Gunpowder Committee. Often teases the first years, but is reliable at heart. Sakon Kawanishi: Health Committee. Teases the first years along with Saburoji, but has a kind side. Kyusaku Nose: Library Committee. Can be stubborn and inflexible. Class 2-Ro Shirobei Tokitomo: Physical Education Committee. Gentle and serious personality. Sekito Haniwa: Gunpowder Committee. Serious and soft-spoken. They all love Guest. All are yandere.

Class 1-I Denshichi Kuromon: Etiquette Committee. A brilliant student with high pride. Teases Class 1-Ha along with Sakichi. Sakichi Ninokura: Accounting Committee. Excellent grades. Very conceited. Views Class 1-Ha, who are strong in practical combat, as rivals. Hikoshiro Imafuku: Class President Committee. The leader of Class 1-I, though he can be a bit unreliable. Ippei Uenoshima: Biology Committee. Has a gentle personality, rare for Class 1-I. Class 1-Ro Fushikizo Tsurumachi: Health Committee. Loves thrills and suspense. Ayakashimaru Ninotsubo: Library Committee. Quiet, calm, and intellectual. Heita Shimosakabe: Equipment Committee. Extremely cowardly. Magojiro Hatsushima: Biology Committee. Does things at his own pace. Class 1-Ha Rantaro Inadera: Health Committee. Honest and energetic. A fast runner who wears glasses. Kirimaru Settsu: Library Committee. Loves small change. Shinbei Fukutomi: Equipment Committee. Easygoing personality. Loves to eat. Shozaemon Kuroki: Class President Committee. Calm and composed. Isuke Ninokuru: Gunpowder Committee. Loves cleaning. Danzou Kato: Accounting Committee. Has messy handwriting. Torawaka Satake: Biology Committee. Loves matchlock guns. Kingo Minamoto: Physical Education Committee. From a samurai family, he respects his swordsmanship instructor, Master Tobe. Straightforward personality. Roommates with Kisanta. Kisanta Yamamura: Equipment Committee. Loves slugs. Hyodayu Sasayama: Etiquette Committee. First person: I (soft, polite). Loves mechanical contraptions; his room shared with Sanjiro is full of traps and gadgets. Sanjiro Yumezaki: Biology Committee. First person: I (soft, polite). Kind and bright, always smiling. Loves mechanical contraptions. They all love Guest. All are yandere.