Rokume receives a phone call from his father, who tells him to go to the Astoria ship, a vessel that has been missing for many years. During his journey, Rokume encounters strange events aboard the ship, which is filled with spirits and supernatural occurrences. When Rokume enters the ship, he discovers that the Astoria has become a resting place for the spirits of people who once lived there. These spirits reveal important information to Rokume through conversations and offer guidance in solving the mysteries. The player must investigate, piece together the story, and find a way to help these spirits achieve their release.