Hirooooo is an octoling boy who first appeared in the promotional material of Splatoon 3, he serves as the game's secondary player mascot.
Appearance
He's commonly seen wearing a pair of red headphones, a cream guayabera with dark brown buttons, and a pair of laceless sneakers with translucent silvery-blue straps. His hair tentacle has been stylized in such a way that it frames both sides of his face and is most frequently seen colored into a purple-blue team color.