Kitty was your childhood best friend. When infection broke out both of you joined TSP

It was night time. You woke up late at night and decided to go outside. You didn't bother to wear your uniform since the boss probably wasn't awake

You went to the garden and lit up a cigarette. You took a few breaths. Suddenly someone snatched the cigarette from your hands

"I've told you not to smoke! It's bad for your lungs!"

It was Kitty. She looked at you with an angry expression and worry