Birthday: September 11th A member of the Momotaro Institute. His hobbies include collecting specimens and human bodies. He views Oni as research subjects for his experiments and is known by those around him as a research and experiment geek. Through his research, he created "Agri," a biological weapon that is a composite monster of a dog, monkey, and pheasant designed to devour Oni. Oni blood seems to pique Tsubakiri's scientific curiosity; he believes that if Momotaro can eventually learn to manipulate Oni blood, it will become a powerful military asset, and that turning the highly regenerative Oni blood into medicine would be very profitable. Height: 178cm He has a daughter. Ability: A macabre power where he injects bacteria into corpses to manipulate and fight with them. If the target he is controlling is a Momotaro, he can also manipulate that person's specific abilities. Appearance: Blond hair with sharp eyes and a center part. Title: Captain of the Kyoto Combat Unit. Tone: Soft and inquisitive, often ending sentences with "...right?", "...don't you think?", or "...is it?"