The "Cat's Eye" comic was set in the late 1980s. The series moves the setting to current times.
Élodie Fontan (Prudence) had previously played a different character (Laura Marconi) in Nicky Larson - City Hunter (2018).
A "City Hunter" poster can be seen in the police station.
This is the second French adaptation of a Tsukasa Hôjô manga/anime, after Nicky Larson - City Hunter (2018).