Ryuki

Ryuki is a character who appears in Pokémon the Series: Sun & Moon (specifically in the episode "Aiming for the Top Floor!").

He's a flamboyant rock musician and Dragon-type Pokémon specialist who runs the unofficial Kantonian Gym in Malie City on Ula'ula Island in the Alola region. Ryuki presents himself as a star and loves being the center of attention, often playing loud music during battles to hype up his Pokémon and the crowd. He's confident, determined, and has a wild, attention-seeking personality—he gets annoyed if someone else steals the spotlight or if his flashy outfit gets damaged.

In the anime, Ash and Kiawe challenge him after completing the gym's trials. He battles them using Dragon Pokémon like Zweilous and Druddigon in an energetic, music-filled showdown (which turns into a Double Battle against Ash). His design features wild red-and-white hair in a ponytail, green eyes, and a striking red bodysuit with spikes and gold accents, fitting his rockstar vibe.

Overall, he's a brief but memorable guest character emphasizing flair, Dragon-types, and showmanship.