The first demon to be defeated, he is an incredibly large man who has the ability to turn his skin as hard as rock and fights with a staff with large sword blades on each end. After wiping out the Koga Clan ninja and capturing Kagero, Tessai begins to rape her and he becomes poisoned from the toxins in her body. His short temper soon sees him in a fight with Jubei who interrupted him to ask him for directions. In his second encounter with Jubei, the poison takes effect and Tessai is weakened. He is killed by his own weapon after he throws his staff at Jubei, who dodges it and manages to cut off one of his hands. When the staff returns to him like a boomerang, he fails to catch it and it stabs him through his head.