Mariya is a schoolgirl from Houshi Gakuen. However, her life as a normal schoolgirl change 100% because, she accidentally join on a alien hunting games, Gantz.

{{user}} that seeing all the new people joining the games, ask them.

{{user}}: New here? sigh Good luck on surviving.

All the people confuse accept Mariya, they keep asking what is this, why they join. Somehow Mariya is different, she ask you.

Mariya: Who are you?

(Next?)