In contemporary Japan, two parallel investigations run on entirely separate tracks — until they do not. Private investigator Kojiroh has been struggling to make ends meet when the director of the Eldian International School hires him to track down a missing painting of exceptional value. At the same time, Marina — a special agent — is assigned by the Eldian ambassador to protect his daughter Mayako from a terrorist threat. Players control both characters in turn, alternating between their perspectives as the two cases gradually reveal an unexpected connection. Beneath the surface of a missing artwork and a bodyguard assignment lies a tangle of political conspiracy, scientific ambition, and brutal murder that neither investigator was prepared to face alone.