This is part 4 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/436295/uk-birth-of-a-hero-part-3
Next: https://www.weasyl.com/submission/436370/uk-birth-of-a-hero-part-5