Is Pokemon XY: Koukoku no Princess Diancie hentai?
English title: Pokémon: Diancie, Princess of the Diamond Domain
No
Rated PG (Children) on MyAnimeList and not tagged as Hentai.

TV Special · 2014 · 1 episodes · PG - Children
Comedy, Fantasy, Kids
In order to save the Diamond Ore Kingdom from certain danger Princess Diancie and the Carbink who serve as her butlers set off together on a journey to find the legendary Pokémon Xerneas. But who is that waiting for them on the road ahead...!? (Source: Pokémon Wiki)
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