Is Tensei shitara Slime Datta Ken: Clayman Revenge hentai?
English title: That Time I Got Reincarnated as a Slime: Clayman's Revenge
No
Not rated on MyAnimeList and not tagged as Hentai.

TV · 2027
Fantasy, Reincarnation, Shounen
After that final scream rang out during the Walpurgis Festival, the dreams of the Marionette Master were thought to be done for good. But either through the vagaries of fate or the decision of the world at large, Clayman's theater has opened up for one more act. (Source: Kodansha)
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