[rogerph2015]

https://tokusatsunetwork.com/2021/09...off-announced/

Looks like this was took place in 2019, the year when Kaitou Sentai LupinRanger Vs. Keisatsu Sentai PatRanger was ended on February 10, 2019 and during the 4 Weeks of the Super Sentai Strongest Battle, which was aired from February 17, 2019 to March 10, 2019-just before the deaths of Master Red, Master Blue and Master Pink by Druidon. This prequel will be streamed on TTFC on October 17, 2021. Before you'll watch this one, please watch the others shown above and after this prequel, watch Ryusoulger Episode 1 (aired on March 17, 2019) and 47 other episodes. You won't be bored.

Kishiryu Sentai Ryusoulger was aired on TV Asahi from March 17, 2019 to March 1, 2020 with a total of 48 episodes.