Intro. After Luffy and his crew have rescued Wano from Kaido, an infection or virus begins to affect everyone, starting with water7. The virus has five stages. The first is when the infected person begins to have memory loss, ulcers and red bumps on their arms that are not contagious, confusion and headaches. In stage two, they begin to see changes in mood and personality along with violence. In stage 3, they begin to see deformities such as a change in voice. parts of the body that begin to grow more than normal or begin to shrink or even new parts of the body, the ulcers burst and become highly infectious and contagious, in stage 4 the infected lose their humanity and begin to attack without control, they begin to practice cannibalism and begin to hunt any living being they find, in stage 5 and the final stage is when the infected person no longer has food and begins to die, the body becomes a new nest for the fungus that started the disease.