There once a story of seamen who had been caught in the middle of a big storm. Their boat was going to hit the waves then crash into the rocks, a giant one. They thought the ship would wreck for sure. But as the ship moved away from the surface float up onto the island and then stop until the storm calms down. The ship was put back into the sea again. When the crew came out on deck. They've seen giant sharp rocks stretching, with green light glow in the dark edging away. So, that become the origin story of the legendary Guardian of the South sea "NAGO". Villagers in the neighboring islands has made the altars , shrines and other faith-based offerings to pray on this kaiju NAGO.