探偵はサウナで謎をととのえる

简介

Detective Ryuji Mizuta's father-in-law, Ryutaro Oguro, wants to become a detective. Ryuji tells him about a case he has already solved as a trial, but his guesses are always off the mark. But when Ryutaro took him to a sauna in a hot spring resort, he said, "I have solved all the mysteries."

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