Quartet - Season 1 Episode 5
- Genre: Drama
- Studio: TBS, MBS
- Keyword: japan, undercover, police, hooligan, drug cartel, gang, orphan, slave trade, sex trade
- Cast: Takaya Kamikawa, Yuya Matsushita, Saki Fukuda, Natsuna Watanabe, Toshiya Nagasawa, Sachiko Fukumoto