Red-Eyed Demons

The Red-Eyed Demons (or simply the Red-Eyes), are a race of Canadists and Humans infected by the Red-Eye virus. The only known cure besides ending the hosts life is to get a lunar wing from the Great Fairy. If they are not killed or cured, the infection will spread. After just 1 week, the host will transform into a Red-Eyed Demon. Symptoms don't appear until after 2 days after the host gets infected. On the 3rd day, the dead giveaway is pitch-black semen, urine, saliva, tears, sweat or any body fluid. These symptoms are usually impossible to miss. 5th day is body-morphing and skin darkening. This is the stage where curing them will no longer work. 6th day is the host becoming brain-dead. 7th day is when the host becomes a Red-Eye. Killing the host will only work if it's done within the 1st to 5th day. Killing the host after the 6th day will do nothing, as the demon has already formed. After the demon forms and doesn't need the host anymore, it will drain the remaining life from the host, killing it. You can still save the host if you eradicate the demon as soon as it forms, but they will remain brain-dead until they die. Tests have shown that (somehow) curing the host's brain-dead state, they will go insane and kill anything that is alive. The process of dying from being a Red-Eye host is said to be a very painful way to die. The worst part of it is in the middle of the 5th day, and the pain ends when the 6th day begins.