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- E-bookMy Life Beyond the GraveKai Kiriyama
- E-bookBlaze Tuesday and the Case of the Knight Surgeon (Special Edition)Kai Kiriyama
- E-bookPathogenKai Kiriyama
- E-bookBlaze Tuesday and the Case of the Singing CanaryKai Kiriyama
- E-bookBetween the PanelsKai Kiriyama
- E-bookPathogenKai Kiriyama
- E-bookSurviving RaptureKai Kiriyama