"Please use me..." As a child, Naoki Inuzuka, a shepherd dog-boy, was ostracized by his carnivorous classmates for his father being an herbivore. He has never been able to forget the high school wolf-boy, Masaki Hoezaki, who listened to Inuzuka and supported him during that time. Now more than a decade later, he is finally reunited with Masaki by chance. Masaki, beautiful and intelligent as ever, runs his own detective agency. Inuzuka is invited to join the agency and decides to work with Masaki out of a desire to be of help to him...? This is a love story between a wolf and a sheep-dog who is single-minded in his devotion!