Battle of Disease

Humanity disappeared. Before that, they used the viruses, bacteria, archaea, toxins, proteins, and fungi they once feared to create devices to protect the last piece of uncontaminated land from disease beasts. More than a thousand years later, a plant virus that once destroyed powerful trading nations in human history, but was non-toxic, the Tulip Broken Virus, was born. Explore this destroyed wasteland, the struggling new creatures, and can those humans who have become history re-enter this land? Another mystery of life is its mortality, and we are beyond it.