Precure: There's No Way a Little Fox Could Be a Villain

[Anime spin-off + crossover + Ultraman + multiple heroines + no System + merged universes]

The protagonist, Su Yuan, transmigrates into the original Pretty Cure world and becomes the villainous Big Boss.

Everyone knows Pretty Cure fighters can match Ultraman in combat power. A bunch of warriors of light put on cosplay outfits and insist they’re magical girls. Su Yuan’s take? Whoever wants to be the villain can have the job! He’s going to be a fox and enjoy the fox life!