Crime_Chaser
The Rapid Response Battalion and the Special Support Unit are two police tactical units of the Republic of Veyshnoria police force, responsible for different duties. One is under the command of the Counterterrorism Center and the other under the command of the Internal Security Bureau, each distinctive by both their appearances and roles, sometimes having to perform joint missions.
One day, while protecting the main government building during some peaceful compromise negotiation between the government and the Self Defence Force, an anti-Belarusian group with their own homemade riot shields, something happens and two platoons from the two units and their vehicles to disappear.
When they regain their bearings, they notice that they are in the middle of what appears to be a modern city similar to Japan, only to hear gunshots of automatic weapons, making them interfere.
They're not the only ones though.
A member of the Self Defence Force has also been teleported along with them, with all his gear after having also been caught in whatever brough them there.
Now the two police tactical teams and the protester have to set their differences aside and try to survive in a world where humans with electronic halos and animal ears, anthropomorphic animals, and robots are coexisting under the intense atmosphere where student groups are fighting each other in what could be characterized as a gang war.
There, they will eventually meet the Foreclosure Task Force and their Sensei, while often cooperating with this world's law enforcement services, which is none other than the KSPD.