Basically boys vs girls on most occasions, in Japan, it takes place on a separate island called the: Fake World Island. Which meant that this large island is a forest with random buildings on it, plus destroyed ones. And random items will spawn too.

The weapons vary on the island, once you die, you don't die, you respawn in Japan in a building called the: Lobby. The main character or OC doesn't have to be human. Abilities apply too.

Monsters roam here and classed enemies.