Lieutenant Tamotsu Hōjō leads the First Investigation Section at Okajima Prefectural Police, possessing a strong build and distinctive pompadour hairstyle. Colleagues regard him as a dependable superior who enforces discipline while prioritizing his team's physical and mental well-being.

Before this assignment, Hōjō served at Machiyama Police Station. There, he investigated a sexual assault case with an officer named Nasu. After the suspect's acquittal in court, the man committed suicide, prompting his wife to hold Hōjō and others responsible for the death. This incident precipitated Hōjō’s transfer from Machiyama.

Following this event, Hōjō stepped away from detective work, rotating through divisions like community affairs. During this transitional period, he cultivated fishing as a personal hobby. Despite the shift, he found fulfillment across his diverse police assignments. Notably, his striking appearance was recognized upon joining the Okajima Prefectural Police.