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Are you Ryusui Seiryoin, author of the books below?
Detective Ritual I by Ryusui Seiryoin Detective Ritual II by Ryusui Seiryoin Detective Ritual III by Ryusui Seiryoin ジョーカー―旧約探偵神話 by Ryusui Seiryoin Detective Ritual IV by Ryusui Seiryoin Detective Ritual VI by Ryusui Seiryoin Detective Ritual V by Ryusui Seiryoin カーニバル三輪の層 by Ryusui Seiryoin カーニバル一輪の花 by Ryusui Seiryoin カーニバル二輪の草 by Ryusui Seiryoin


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