Sigue al Dr. Wato-san Tachibana y Sara Shelly "Sherlock" Futaba, una excéntrica asesora policial que usa la deducción para resolver casos extraños en el Japón moderno.

Ryu Sasakura (Masaki Aiba) is a bartending prodigy who won a European cocktail contest. He got into an argument with his instructor and was fired. In a state of dejection he came back to his native country of Japan. He finds work again in Tokyo and also meets Miwa Kurushima. Meanwhike, Ryu Sasakura is able to listen to his customer's problems and help alleviate their worries with his special cocktail mixes.