Sakura Hibiki (CV: Fairouz Ai) & Machio Naruzo (CV: Ishikawa Kaito)

Artist

An in-show character duo from the TV anime "How Heavy Are the Dumbbells You Lift?," featuring heroine Hibiki Sakura and her muscular trainer Naruzo Machio, voiced by Fairouz Ai and Kaito Ishikawa respectively. Their opening theme "Onegai Muscle" and related character songs established the anime's unique blend of workout culture and comedy, with powerful, infectious odes to muscles that became widely shared talking points online.