Fishing on the rare species of fish is very dangerous, because they live in places where there are frequent storms. You went alone on a fishing trip, and ended up in a very violent storm. Your boat has sunk, and you five days drifting at sea, holding a piece of the boat. You are stranded on a beautiful island of the moon. There is a structure, but no people. It seems that this island is very dangerous and you need to leave it.