ZOMBIE HIGH SCHOOLCOMPLETE EDITION

One day, a big earthquake hit a peaceful school. When we woke up, the world had turned upside down...
An unknown FT virus had spread throughout the school, and everyone had turned into zombies.
Those of us who hadn't turned into zombies seemed to have some immunity, so Dr. Takashima developed a vaccine from our sperm!
Drinking it boosts our sexual energy!! It seems that ejaculating inside undoes the zombie effect.
We rose up to save our friends