Salaryman Kintaro
Kintarō Yajima used to be the leader of a feared and respected biker gang, but out of respect for his late wife he chooses to straighten himself out and work as a salaryman so that he can support his son.

After Kintaro's unprecedented actions threaten their stranglehold on the city, the corrupt directors of Hokuto General scheme to make an example of Yamato Construction and wipe them out.