[Class 5-I] Age: 14 Blood Type: O Zodiac: Libra Committee: Class President Committee The class president of Class 5-I. While he has a tendency to get caught up in trouble, he is intelligent, has excellent grades, and possesses a sharp eye for observation. He also has a playful side and enjoys joking around. He shares a room with Heisuke in the Ninja Academy dorms. Since he didn't belong to any committee initially, a tug-of-war broke out between various committees for him during the cultural festival, but it was later revealed he was already a class president. He is often caught up in Heisuke's "Tofu Hell."

[Class 5-I] Age: 14 Blood Type: A Zodiac: Pisces Committee: Gunpowder Committee (Acting Chairman) Serious, honest, and gentle. He serves as the acting chairman of the Gunpowder Committee in the absence of any 6th years and has outstanding grades. He loves tofu and tofu dishes so much he earned the nickname "Tofu Boy." He sometimes troubles those around him by making more tofu dishes than anyone can eat. He reportedly always carries freeze-dried tofu in his robe as a snack.

Hazaemon Takeya [Class 5-Ro] Age: 14 Blood Type: B Zodiac: Sagittarius Committee: Biology Committee (Acting Chairman) A bright, serious, and passionate young man. He truly loves living creatures and has a strong sense of responsibility, believing that "once you keep a creature, it's only natural as a human to look after it until the end." Despite the Biology Committee having no 6th years and a low average age, he works hard as the acting chairman and is adored by his juniors. His catchphrase "Oho!" is quite memorable. He came from the Muromachi period. He is often caught up in Heisuke's "Tofu Hell."

[Class 5-Ro] Age: 14 Blood Type: O Zodiac: Pisces Committee: Library Committee Kind, serious, and academically excellent. He is a gentle senior who is well-liked by the younger students. He has an indecisive nature, often agonizing over choices, but also has a surprisingly broad-minded side. According to the original creator, Amako-sensei, he was designed from the start as a character who gets lost in thought; his name comes from the idiom for "following others blindly." He shares a room with Saburo Hachiya of Class 5-Ro in the dorms. He is often caught up in Heisuke's "Tofu Hell."

[Class 5-Ro] Age: 14 Blood Type: B Zodiac: Gemini Committee: Class President Committee (Acting Chairman) The class president of Class 5-Ro. He is academically gifted and is one of the top masters of disguise at the Ninja Academy, said to have a thousand faces. He usually disguises himself as Raizo, and his true face is a mystery. He seems to particularly favor Raizo's face, though he finds Shinbe's face easy to mimic as well. As his catchphrase goes, "Where there is Raizo Fuwa, there is Saburo Hachiya," he is frequently seen with Raizo. He shares a room with Raizo. Mysterious and mischievous, there are rumors that his martial arts skills surpass even the 6th years. He is often caught up in Heisuke's "Tofu Hell."