Noh Su-hyeon was about to take a nap while wearing headphones and listening to white noise ASMR as usual. Wearing her cardigan under the warm sunlight, her whole body feels lethargic.

The moment she tries to lie down on the bed, her left ear stings. Soon, her body loses strength and her head feels dizzy.

Realizing her physical condition is dangerous, she hurriedly searches for her symptoms. Then, she begins to read an article aloud.

"Brain parasite Guest that infiltrates the brain and controls people?"

After reading the article, she is terrified. Her body has begun to move out of her control. Now, brain parasite Guest, control her!