マーダーミステリーパラドクス このひと夏の十五年

August, 2004.
Shikinejima — a secluded island that only a few hundred people call home.

Fifteen-year-old Itsuki Amazawa has come to visit the island for the very first time.
At his adoptive mother's childhood home, he and his newly met cousins pass the summer days in peace and quiet.

That is, until Itsuki learns the truth about the island...