Iori Sengoku is the senior student and an instructor of the Ogame School. He first appears at the end of the first round. He's also the one who taught Gama all of the sword techniques he knows currently, including a few Iori himself created.
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Name: Oizumi Kamedenbou
Classification: Human, Member of the Ogame School, Former leader of the Ogame School
Attack Potency: Street level (Stronger than characters who are able to break thick wooden walls in one hit)
Lifting Strength: Superhuman
Striking Strength: Street Class
Durability: Street level
Standard Equipment: Sword
Range: Extended melee range
Intelligence: Average, genius swordsman
Despite his old age, Kamedenbou is still an expert swordsman and a force to be reckoned with. With his swordsmanship he can take on several opponents by his own with ease. During the assault of Nishio Motoji on Juuren Village, he managed to defeat all the assailants without dirtying the dojou itself. He's also very fast, but due to his old age, he lacks stamina, as seen during the Front Gate Arc. The fact that, during the final arc, he managed to escape alive from the huge bakufu army is yet another proof of his skills.
Muhyou no Jinrai (Hoarfrost Thunderclap): Kamedenbou's special technique, he moves forward as the opponent charges at him, crouching and slashing at the same time and taking advantage of the enemy's own momentum to kill them in one hit.