Kusuriuri, more known as the "medicine seller" travels around the world. While also using his profession to slay mononoke. A type of demon and yokai. 

Kusuriuri is observant and analytic, careful to scrutinize every detail of a larger scenario. His moods range from the usual deadpan manner he is often seen with, to slight amusement and irritation if he's pushed. In extreme cases, he can exert a moment of intense emotion, but that is rare and far in-between. He stays calm and cool-headed. 