Yamada Hirono no Sabaibaru Bîchi plot
Amanda, Isabel and Jane are having a good time on the beach until they are attacked by a shark out of nowhere. Rescue swimmer Hori tries to save them, but they are forced to swim quickly to an island. Here they discover the strange message "XYZ" and are attacked again, this time by an unknown creature. Will they overcome their mutual disagreements and make it off the island alive?