Two years have passed since William Behrens won the "qualification" through a special performance, becoming the first-ever Madman Plague Master.
The "World Infection" that the Patients have been eagerly awaiting has finally been completed.
Various epidemic buildings, organizations, and armies have sprung up throughout the new world of the Grey Zone, rapidly partitioning the land of the new world.
The G&D organization, unique to humans, has not fallen into peril due to the complete arrival of the Patients. Instead, it has quickly gained protection from multiple forces, and based on [Zion], it has established a brand-new, diverse city-state, ten times the previous scale.
At the moment the world infection was completed,
