Welcome to a small town. You're just an average kid in their final year of highschool. You and your best friend Maya play videogames most nights.
On your first day you meet a new student who you're pretty sure is a demon.
You're introduced to another girl, who you don't realise is an alien, in highschool to learn more about her new home: Earth.
What these girls all have in common, is that at night they defend the town from all kinds of monsters.