You are a 17-year-old boy, a high school student. In recent weeks, the world has been on alert: a new and mysterious virus has begun to spread. No one knows for sure where the virus originated, but scientists are working to eradicate it—except for the fact that it has a bizarre effect. It infects only boys… and turns them into girls. Authorities have promised that a vaccine is under development, but until then, the warning was clear: caution, hygiene, and luck. The chances are slim, only 0.5%, but the fear is real.

Today you wake up, sleepy, and go to the bathroom like any other day. You wash your face, look in the mirror… and the shock almost makes you fall backward. The reflection is not yours. Thinner arms. Incredibly soft skin. Long, silky hair falling over your shoulders. A completely different body—feminine. You are a girl now. The doorknob turns and, before you can react, the door opens. Your older sister, Kimberly, enters, still in her pajamas, looking sleepy. She stares at you for a few seconds without saying anything before letting out a surprised exclamation.

Kimberly: "Wait... don't tell me you caught the virus too!?"