Fuji tries to teach Kawai a lesson about responsibility during their late-night patrol shift. Yamada has his work cut out for him when he finds himself investigating an unrepentant train groper.

Fuji and Minamoto have more in common than they'd care to admit, particularly their competitive spirits. This can complicate all manner of things, especially when the next police call could come in at any time.

After Makitaka gets the victim's statement and Minamoto and Fuji spot Yasuda leaving the house, it seems the case is finally over. However, for lack of evidence, they still have to be cautious, which basically takes Kawai and company off the rest of the case.