Kishiryu Sentai Ryusoulger: The Legacy of The Master's Soul - Season 1
1 - Episode 0-I
Air Date: October 17, 2021
Just before the Druidon returned to invade Earth, three masters took much care in assessing their successors-to-be.
2 - Episode 0-II
Air Date: November 21, 2021
3 - Episode 0-III
Air Date: December 19, 2021