Some female monster and this look like dark hentai-fantasy-guro but don't count Urotsukidoji new saga this hentai-FANTASYUrotsukidoji. Personally, I think this is the best hentai anime ever. I've never seen a hentai that gives such a strong impression as this. In episode 6 and 7, a female spider monster disguised herself as a prostitute and seduces the hero to kidnap him. In the next episode she fought quite well but eventually lost to the another hero character.
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She looks similar to the female monster in Wicked City.
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