Adventure of a Lifetime

"There’s something I need to get back. Something precious that sank into the ocean years ago."

The story takes place on the World Heritage-listed Ogasawara Islands.

After a four-year absence, Hiroki Mizuno returns to the island during his summer vacation to help his grandmother with her shop. The story begins as he encounters a beautiful blonde girl, Emily, on the deck of the ferry on his way to the island.

Emily has run away from home. She has her mind set on retrieving “sunken treasure”. ...