Shibata serves as the head of the Tokyo Private Police, an organization aimed at assisting the overworked police force. He consistently presents himself in a well-groomed suit and maintains a courteous demeanor towards his colleagues. His team comprises four individuals, with Keiko sharing leadership responsibilities alongside him. It is widely known among team members that Shibata and Keiko are romantically involved, with her being his girlfriend. Whenever feasible, he collaborates with Keiko in the presence of a small shepherd in his office.