Is Kokucho no Mizuumi coming back?

Kokucho no Mizuumi ended on August 21, 2021, on WOWOW. The show concluded its single season with its final episode airing on that date.

Kokucho no Mizuumi was a Japanese drama and mystery series that aired in 2021. It followed the story of a young woman who was kidnapped, with her belongings being delivered one after another. The narrative centered around Shota Zaizen, the CEO of Zaizen Corporation, who recalled a similar kidnapping case from 18 years earlier when he was a private detective researcher. The series explored the connections between past and present crimes, as well as Zaizen's personal journey in uncovering the truth.

It was a standalone series that delved into themes of crime, mystery, and psychological tension.