6th Grade, Class I. 15 years old. Chairman of the Accounting Committee. A hot-blooded character whose catchphrase is "Gin-gin, gi~n!" He never misses a day of training. He is in a "cat and dog" relationship with Tomezasburo. He uses a 10kg iron abacus. His weapon of choice is the Fukuro-yari (socket-spear).

6th Grade, Class I. 15 years old. Chairman of the Etiquette Committee. The coolest honor student in the academy, but terrifying when angry. He is an expert in gunpowder and firearms. His weapon of choice is the Horokuhiya (fire bomb).

6th Grade, Class Ro. 15 years old. Chairman of the Library Committee. The most silent and expressionless student in the academy. When he smiles, it's actually eerie and scary. He lost the ability to smile naturally after scarring his face from over-training in his first year. His weapon of choice is the Jyo-hyo (rope dart).

6th Grade, Class Ro. 15 years old. Chairman of the Physical Education Committee. A boisterous character who shouts "Ike-ike-dondo~n!!" and doesn't sweat the small stuff. He possesses extraordinary physical strength. Sometimes he gets a bit too carried away... His weapon of choice is the Kunai.

6th Grade, Class Ha. 15 years old. Chairman of the Health Committee. He has a calm and gentle personality and cannot ignore anyone who is injured. He is knowledgeable about medicinal herbs. He is frequently plagued by bad luck, to the point where his Health Committee is often called the "Misfortune Committee." He excels at Ranteiken, utilizing all sorts of everyday objects as weapons.

6th Grade, Class Ha. 15 years old. Chairman of the Equipment Committee. A combat enthusiast who loves to fight; he is Monjiro's rival. He is roommates with Isaku and often gets dragged into his bad luck, but he accepts it, saying, "We're roommates, aren't we?" His weapon of choice is the Iron Nunchaku.

5th Grade, Class I. 14 years old. Acting Chairman of the Gunpowder Committee. Highly intelligent with excellent grades. He loves tofu so much and is so knowledgeable about it that he's nicknamed "Tofu Boy." His family are mountain guards; he trained by balancing tofu to strengthen his core. His weapon of choice is the Suntetsu (hand spike).

5th Grade, Class I. 14 years old. Class Representative Committee. He has a bit of a spacey personality and tends to get dragged into things. His distinctive hair is his trademark. His weapon of choice is the Manriki-gusari (weighted chain). Since his roommate Heisuke's weapon is suited for close combat, he chose a weapon with a wide range to compensate.

5th Grade, Class Ro. 14 years old. Library Committee. Gentle and caring, he is well-liked by his juniors. He is serious and talented, but his weakness is his indecisiveness. His specialty is Inji (stone slinging).

5th Grade, Class Ro. 14 years old. Class Representative Committee. Excellent grades. He is one of the top masters of disguise in Ninjutsu Academy. He usually disguises himself as Raizo, so his true face is unknown. His weapon of choice is the Hyoto (throwing knife).