Rack - 13-kei no Zankoku Kikai

High school student Shou Shintou, son of the Superintendent General of the Metropolitan Police, is known for his extraordinary deductive skills and the ability to solve even the most difficult cases. In reality, though, his brilliant judgements are based on solid proofs and confessions—brought to him by the Special Investigations Division 13, specializing in questioning with the use of tortures.