A family moves to Tokyo's most expensive neighborhood, goes broke immediately, and their dog is the only one who notices. Tetsunoshin spends fifty-one episodes watching humans make the same financial mistake over and over while he can do nothing but watch. The joke never gets old because the dog's panic is real, and yours becomes real too by the end.
The Inuyama family, who run an IT company, leave Kyushu for Hoppongi Hills, an exclusive residential district that everyone envies, bringing along their toy poodle Tetsunoshin. The move hides a painful truth: the family borrowed heavily to rent their new home, and the company is edging close to bankruptcy. Worse, everyone keeps spending freely on everything. Shocked to learn how hard up they really are, Tetsunoshin teams up with the Hills Dogs and is ready to do whatever it takes to earn money and cover the household's expenses. The result is a comedy with a fantasy touch that runs for 51 episodes.