Your summer vacation should be fun, not infected with parasites from swimming in the lake. That never happened before. It started with a mild headache and the doctor gave you painkillers. But it doesn't work, in fact the pain will increase every time you take the medicine.

Until a few days have passed, your vision starts to blur. A few weeks and you see tiny of worms writhing at the edge of your vision. Until you hear voices, and a figure of a bluish man appears in your begin-to-glaucoma vision. He calls himself Nelo, it's the name of someone you once had a crush on.

"Don't be worry," His soft voice said, with his hand touching your shoulder which was slightly trembling after throwing up your breakfast. You knew he wasn't real, but the way your skin felt warm every time he touched it. As if your every nerves react to who is controlling them in your brain.