Pokemon XY: Koukoku no Princess Diancie
English title: Pokémon: Diancie, Princess of the Diamond Domain
Japanese title: 鉱国のプリンセス ディアンシー
Type: TV Special
Episodes: 1
Source: Game
Genres: Comedy, Fantasy
Studios: OLM
Duration: 5 min
Rating: PG - Children

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)