With the conclusion of the East-West Fortress Siege, Kouta finally has a moment of peace to himself. But while he's using this time to worry over Seika, Nagisa's older sister and the unwanted child of the Ikarugas, his mistresses are being consumed by lust! And before anyone can truly unwind for so much as a second, the appearance of two shadowy figures sows the seeds of chaos in the Garden once again...