Unubore, once the ace of the Violent Crime Investigation Team at the Tokyo Metropolitan Police Department, fell into a slump when his fiancé left him. He now works at the Setagaya Police Department constantly dreaming of meeting his destined partner. One day, Katsuya Miyamoto, an employee of a game software developer company, has been murdered. It is suspected that Eriko Kisaki, Miyamoto’s subordinate and ex-girlfriend, could be involved. However, Unubore had already fallen in love at first sight with her. Unsure of what to do, he stops by a bar and receives help from a group of interesting people.

Two men had been hospitalized under suspicions of mild food poisoning, but their condition takes a turn for the worse all of a sudden, and pass away. It is discovered that they were the husbands of Kiyomi Murakami and Kotomi Ohashi, who happen to be students in Matsuoka’s baking class. Unubore attends their funeral but is entranced by an usherette Nobuko Maehara’s beauty. The police suspect that Matsuoka might have conspired with Kiyomi and Kotomi to kill their husbands, but Unubore seems to think otherwise.

The Setagaya Police Department receives a victim report from Emi Tajiri, an entertainer and retired badminton player, claiming that she had been assaulted. She insists that Yumi Hagio, her former doubles partner in the national team, is behind this incident. Meanwhile, Tajiri and Unubore receive a death threat targeted at Tajiri’s son, Shinya.