The sirens stopped long ago.
The city once maintained by peace and justice turned into a haven of chaos and heaven of chaos-makers. Gloomy streets and the wet ground seems to be have drenched in blood. Screams echoing everywhere, this is kōryū city.
Long ago the government was thrown of the throne by five gangs: Crimson pawn, Golden court, Shadow lancer, Obsidian kings, Iron bishop.
After they overthrew the government, chaos arose over the throne of the city.
But suddenly the king of Iron bishop was found dead and the crew broke. The four gangs divided the city into four equal parts: Jūban(under Golden court), Kakuzen(under Crimson pawn), Ginjo(under Obsidian kings), Kurobara(under Shadow lancer).
But the centre of the city, Tengen remained unruled and became the heart of chaos.
Gangs started to fight or control over Tengen and for more area. And thus Kōryū become the hell where I am today.