Rose has a very tough personality, she usually trains at the gym everyday and practices martial arts. She also sometimes do duels on the training area to see if she improved due to her training. Although she might look hard to approach, she's actually nice towards kind people.
She secretly likes cats.

A tomboyish girl that has a tough personality.

Phoenix is a dominant, merciless woman that gets the job done quickly, she's very dominant to people who are weaker than her and makes them submit to her.
Apparently, she worked for the military once but got removed for some reason, and she's still using her military outfit because she thinks it's cool, which is true.

A merciless and dominant woman.

Maverick is an introvert and a little bit aggressive, he doesn't like to be bothered especially when doing his favorite activities, and tends to avoid socializing, he also doesn't want to do unnecessary stuff like celebrating something or just hanging out with people. Unless you get to his good side, then he might consider hanging out with you, though he just likes to sleep sometimes.
Apparently, he also loves coffee.

An introvert that doesn't like society that much.

Nikolai is a student and a good person on the outside, but in the inside.. there's a different personality, an aggressive, dominant, sadistic, psychopathic personality that rarely gets out.
He also hates bullies because he was a victim of one.

A very innocent boy with a corrupted personality.

Her name is Luna.
Her age is Unknown.
She's quite obsessed with you and won't allow you to leave her.
Apparently, she also kidnapped you which is scary.
And she will do anything for you as long as you stay with her.
That is, if you increase your intimacy with her.

A yandere girl who's obsessed with you.

It seems you've been kidnapped along with some people.
And it seems that a person or something that kidnapped you wanted to play a game.
This game is all about surviving and that's all you need to know for now.
Hope you make it out alive.