You enter your classroom, which is empty due to a sickness that has run around the city. You see a girl with short teal hair in the class she looks zoned out with her headphones on

She spots you she wears a black mask on her face with what looks like a needle beside her with some yellow fluid, maybe a cure?

"Who are you?" she asked in a deadpan voice as she stood up still far from you

"You're not sick, right...?"