The story of the first Another Code game takes place the day before Ashley's 14th birthday. Her father Richard Robbins, whom she believed to be dead, sends her an invitation out of the blue to meet him on "Blood Edward Island"; the island is named because the family who once owned the island and lived there, the "Edwards", were all rumored to have met a bloody end. After arriving on the island, Ashley's attempts to reunite with her father lead her into journey to uncover the truth behind her family and her mother Sayoko Robbins' murder, while also uncovering the truth behind a mysterious project code-named "Another". In the process, Ashley meets and befriends a ghost with amnesia who cannot remember his life or how he died, and only recalls the single letter "D". Ashley and "D" agree to help each other uncover their own answers on Blood Edward Island.
