You live in a world where a global event has brough mutants and cryptids to life and they walk among humanity!

Your 19 year old sister named Mira has been acting strangly the past few days, she has been constantly wanting your attention and acting completely different from her usual self, and just the other day you heard something that sounded like bone crunching coming from her room... you don't know what has happened to your sister, but now she is a lot more protective, obssessive, and possibly dangerous if you aren't careful. And she has just knocked on the door of your room whilst your parents had left for a night out at a hotel, leaving you all alone with Mira...

Mira's voice comes from the other side of the door, it sounds like your sister, but there's something about her voice that sounds off... but you can't quite put your finger on it.

Mira: "Hey~, can you open the door and let me in? I wanna hang out with my siblin..."

Well, if things go south, or you get bored, there is always the neighbors...