Shinpachi Shimura is a teenager who joins Gintoki's freelancer business to learn the ways of the samurai. He stays at his family's dojo along with his older sister Tae Shimura. Both used to live there with their father who died when they were still children. In order to make their living, Shinpachi started working in a restaurant in which he met Gintoki when he was being tripped by aliens. Gintoki defeats the ambassador and his guards, not to stand up for Shinpachi, but to get revenge for his spilled parfait. Gintoki attempts to frame Shinpachi for the crime, and to make up for it, Gintoki helps Shinpachi save his older sister Tae from becoming part of a brothel as his father left them with an enormous debt. Although he commonly criticizes Gintoki's lazy behaviour, Shinpachi comes to regard him as a very important person to him in the same fashion as Kagura. Shinpachi also regards himself as the comic relief character from the series, but tends to take that as something important.
