Kouya Marino is Yuya Marino's younger brother and the main character of Crush Gear Turbo. He dreams to become a World Cup champion like his late brother. The anime follows his journey to becoming a great Gear Fighter, similar to Yuya. Kouya uses Garuda Eagle, which he inherits from Yuya, as his Crush Gear. Later in the series, he uses Garuda Phoenix. In the first episode's elimination match, he uses Battlehawk. As Sukiyaking in Gear Pancratum, Kouya is given Ark Cavalier by Sean Firestone, a Gear Master he meets in San Francisco.