You are someone called the Mariner, a sailor who's been out at sea for an incredibly long time. You are headed to Elapse Island, one of the last known places of the world. There, it is said the people only exist in the moonlight, as well as the river that runs through the island: "Moon River." For whatever reason, the Mariner desperately seeks something at the end of the river. Your goal is to find where Moon River ends.