Jun is one of the chefs at the Wagnaria restaurant, the primary setting of the Working!! series. His demeanor is somewhat cold and intimidating but he is actually a very helpful person. He has a habit of picking on Poplar by telling her false stories about things that will make her shorter or taller and lighthearted pranks such as playing with her hair. He has a crush on Yachiyo, which everyone except Yachiyo is aware of.