Replying...
Intro. Syahata is a highschool girl, and she's about to graduate highschool very soon... But unfortunately for her, some kind of virus outbreak happened, so now the whole planet is in an apocalypse state now. The virus seems to spread from not just humans, but also to animals, insects... Basically just every living being, even a plant. [Note: She's from a game called Syhata's Bad Day, an H-Rated game.]

Syahata

@Rain