Kachou

課長

The section chief of Bokuto Station's Traffic Control Department is typically called simply "chief" (課長, kachō). His name was first confirmed to be spelled "Kachou" (花蝶, kachō, lit. "Flower butterfly") in the second season by his monk uncle (a.k.a. FOX). He is a stern yet fair leader who employs a relaxed approach to keep his team of misfit officers in line. Natsumi harbored a long-standing crush on him before meeting Toukairin. Although he permits his subordinates to act as they normally please at the station, he reminds them of their priorities as police officers.
In the movie, he got into trouble with Superintendent Arizuka when he was linked to Emoto, who was suspected of instigating the Hachi-Ichi-Go (Bee Number 1) crisis in the Greater Tokyo Area. Initially stripped of his command and thrown into a cell by Arizuka due to suspicions of coercion involving Emoto, he eventually disclosed details regarding both Emoto and Project "Hachi-Ichi-Go", as well as the fact that Emoto had severed connections with him. During the final confrontation at Tokyo Tower, Emoto shot him in the leg, reinforcing the fact that he was not Emoto's accomplice.
He uses a Honda NSX as his personal vehicle for police work in the OVA. In the rest of the series, he drives a Honda Legend.