Hard & Loose: Shiritsu Tantei Toki Shouzou Trouble Note  

Hard and Loose, Toki Shozo Trouble Notebook Hard & Loose, ハード＆ルーズ ~私立探偵・土岐正造トラブルノート~

A mystery novel featuring a retired athlete named shozo who gets entangled in a complex plot after answering an unknown caller while monitoring someone else.