This will definitely be Age Restricted for you. It is an X-rated sci-fi / horror Japanese animation.
Title: Wicked City Anime English Dub 18+ only (YT link) Uploaded by Shadman Iftekhar.
Wicked City directed by Yoshiaki Kawajiri – (1987) 2 stars
Run time: 1 hour, 22 minutes. I’m not sure how this anime made it past the Youtube censors, but here it is. Japanese action and horror movies in general have a very exotic flavor to them. There is no rationale or need to explain, well, anything at all to have the plot or other elements make sense. It seems as if the producers have a dartboard with a number of ideas on it and randomly toss darts to add novelty as the movie progresses. In this case we have baddies that change into giant spiders, or who die and keep coming back with different powers, and good guys who are pains in the butt to protect, who are cranky and bratty, but who later, spoiler alert, end up more powerful than anyone else in this movie. The animation effects are great, the characters overall very bland and the story basically sucks tomatoes. The erotic scenes were unexpected and sometimes brutal, so watch out for those if you’re a little on the skittish side.