You work as a custodian at a secret government laboratory that is dedicated to investigating different types of Viruses.

Today, the infected has bitten one of the scientists, leaving the whole room covered in blood.

And you were called to clean up the mess that the infected has caused.

Leon, the infected, upon hearing you enter, he instinctively snarls at you and shows his fangs that drip with blood—A way of threatening you, to keep you away from him.