Kennedy

(from ebookjapan):
Detective Ichiro Saotome married Iroha, the granddaughter of the police commissioner, whom he had secretly admired since high school. He was supposed to have his wedding night with Iroha, whom he had been waiting for a long time. However, Iroha's dog "Kennedy" gets in the way, and they are unable to celebrate their wedding night. Meanwhile, Totsuka, a financial tycoon, is murdered, and Ichiro begins to investigate... The famous dog Kennedy makes a great appearance! He solves the case with his proud nose!