Aged approximately 30 years, Hayao is a somewhat grumpy, chain-smoking bar owner in Osaka. He seems to know a lot about what's going on in the shadier parts of town, although he never seems to leave his bar for longer than it takes to buy a case of cigarettes. Despite his gruff demeanor, he is a genuine guy, and the regular patrons of his bar seem rather attached to him, even when he berates them for various reasons.