Yodonna

Yodonna is the second-in-command of Emperor Yodon who was formed as an alternate persona of Emperor Yodon. After being destroyed by Emperor Yodon in the final episode of Kiramager, she ended up as one of the many prisoners of Darkprism. Currently she is a member of the Anti 7.

History in the Kuroninja series
Yodonna's first appearance was in Shift in Dimensions, where she was broken out of Darkprism by Kuroninja and Kuronindragon. This was because Kuroninja needed to find villains who could help him stop the Kuroninja Multiverse from falling in the hands of Tojitendo. Yodonna agreed to go with Kuroninja temporarily, but after seeing him use shadow ninja skills she decided to commit fully to aiding Kuroninja in his goal to save the Multiverse.

Later, Yodonna brought the Alienizer Reversian Succubus Hells to Darkprism to help fight against Tojitendo. She and Succubus became a very dangerous duo because of Yodonna's ability to enhance allies at the cost of draining their life. However, Succubus had the ability to absorb other people's life force, like a leech or a vampire. This made Yodonna and Succubus a very dangerous duo. Both of them would later join the Anti 7 after Butterfly Ninja Benikiba defected from Akuma no Kuroninja.

Trivia

 * Yodonna is Kuroninja and Kuroninja of Earth 0's favourite character in Mashin Sentai Kiramager.
 * There were plans for Yodonna to debut much earlier, in a Christmas special for 2020, but then Kuroninja of Earth 0 scrapped the idea when it was revealed that Yodonna was a persona of Emperor Yodon.
 * Yodonna is the highest ranked villain in Kuroninja's tier list of Super Sentai villains, also this may be disputed as the tier list didn't have every villain in Super Sentai.