The official social media accounts for Detective Conan: The Culprit Hanzawa confirmed the series will premiere on Netflix on February 1, 2023, following its Japanese premiere this past October. An updated key visual was also released.

Key Visual

Detective Conan: The Culprit Hanzawa is an official spin-off comedy manga illustrated by Mayuko Kanba which is serialized in Shogakukan's Shonen Sunday S monthly magazine since May 2017. Six collected volumes have been released in Japan so far. Its story is set in Beika-cho in Tokyo, a fictional town in the center of the Detective Conan series, and follows the daily life of the “Shadow Man" (Hanzawa-san the Culprit), a silhouette of an unidentified criminal in Case Closed. The cast from the main series return for the spin-off.

Source: Detective Conan: The Culprit Hanzawa Official Twitter