Is Quartet coming back?

Quartet ended on March 15, 2011, after its first season on TBS.

It was a Japanese crime drama series that aired from January 18 to March 15, 2011. The show followed three individuals with troubled pasts—Shun, Takeru, and Kasumi—who were hired by Kuchinawa to infiltrate a criminal gang involved in illegal activities such as human drug experiments and slave treatment in the neighborhood of Midori. Throughout their undercover work, they faced dangerous situations and developed trust and maturity.

The cast included Saki Fukuda as Shun, Matsushita Yuya as Takeru, Natsuna Watanabe as Kasumi, and Takaya Kamikawa as Kuchinawa. The series had a runtime of 30 minutes per episode.