Kyushu Wolf Smoke

Core setting: The three kingdoms of Dayan, Beili, and Xiyuan have a century-old feud. On the surface, they are fighting endlessly for territory. But in the dark, there is a mysterious organization called "Nine Nether" that has been lurking for hundreds of years, instigating the three kingdoms to kill each other and swallowing up the fate of the nine states. When the most elite intelligence agencies of the three countries - Dayan's "Shadow Division", Beili's "Black Ice Platform", and Xiyuan's "Tingli Tower" - gradually discovered the truth during the fierce border battle, a desperate game from killing each other to being forced to join forces began.