This is part 3 of the Ultra-Kitten story, Birth of a Hero.
artwork, characters and story copyright SatsumaLord
First: https://www.weasyl.com/submission/436263/uk-birth-of-a-hero-part-1
Previous: https://www.weasyl.com/submission/436279/uk-birth-of-a-hero-part-2
Next: https://www.weasyl.com/submission/436339/uk-birth-of-a-hero-part-4