When the Head Teacher's wife sets up an omiai for Yankumi, Yankumi reluctantly goes, knowing that she only has eyes for Shinohara the detective, whose sister is getting married. Later on, while Kuma is taking a stroll, he bumps into a student from a prestigious high school who was shoplifting. Kuma was blamed for the crime and Yankumi, Shin, Uchi, Minami, Noda and Kuma heads to bring the real perpetrator out.