Character from Splatoon (Series).
Called Ryan ('Raian') in Japanese. Not to be confused with the other Splatoon character Ryley (Splatoon) from the band Wet Floor, who is called Ryan in Japanese.
They are a flapjack octopus.
They're the composer and bassist of the band Chirpy Chirps (formerly <i>ABXY</i>), alongside Harmony (Splatoon), Sid (Splatoon) and Clash (Splatoon).