Bay City Wars (ベイシティウォーズ) is the first City Hunter OVA, released on August 25, 1990
In a corner of Tokyo Bay lies the completion of a futuristic city, Bay City. On one hand, Kaori and Miki attend the inauguration of the hotel. On the other, an autocrat of the Costello Republic, General Gilliam, with his daughter, shows up as well, with revenge plans of his own. With the nuclear missile system at their hands, the police and the American forces could only rely on Ryo and Umibozu to face this threat.