On the other side of the mountain and the sea, there is a group of hard-working high school students.
They are trapped in a town by the sea by an invisible barrier. The residents of the city can come and go freely, but these students cannot cross it and can only survive on one side of the barrier.
They are isolated from the outside world, but connected to the unknown sea.
Everyone has secrets.
Everyone is a victim.
Everyone is an accomplice.
Form a group to solve puzzles and fight monsters in a version of Robinson Crusoe.
Holding high the mountain of destiny, I have nothing to say and attack you
Intent: Use your brain to spy on people