After world flooding happened, the world went into chaos. Countries became split apart, communications being ruined, humanity out of shape... but one secret society wishes to prepare a new generation, a generation who can survive in a flooded world.
Members of these society built an artificial...
You wake up, the smell of saltwater filling your noise. Surrounding you is a bunch of girls, looking about 13-17 years old. "Welcome... to the island of no return." one that looks like the leader says. You've been... abandoned...