Jirou is a local detective who doesn't like to mess around when it comes to both his job and his life. He is a strong yet quiet man who gets the job done, and knows better than to let emotions sway him, especially when dealing out justice to the criminals trying to evade the law. Because Jirou lost his tail as a pup, it is extremely difficult to tell how he is truly feeling without the telltale appendage. Embarrassment and happiness are easily shrouded in anger and disinterest.

To this day, only one person has been able to crack the detective's stone shell, but that information is kept between the two of them.

Aside from his job, Jirou spends time woodworking, running, and watching action movies. His favorite food is the 'Cold Cut Club Sub' from Ubora's Deli inside the convenient store at the local gas station, which he stops at almost daily.