A Death in Tokyo

In the Nihonbashi district of Tokyo the statue of a mythic beast - a kirin - stands guard. Late at night, the body of a murdered man, stabbed in the chest, is found under the statue of the winged beast. However, that was not the crime scene - the man was killed a few hundred feet away and his body moved to that position. The same night, a young man named Yashima is injured in a car accident attempting to flee from the police. Found on him is the wallet of the murdered man. The two have no known connection. Tokyo Police Detective Kyoichiro Kaga is assigned to the team investigating the murder - and must bring his skills to bear to uncover what actually happened that night on the Nihonbashi bridge. Why was the murder victim moved? What, if any, connection is there between the murdered man and Yashima, the young man caught with his wallet?