Hyuga comes from a poor family from Okinawa, and has striven all his life to be a great footballer to provide for them. Being presented as a fearsome striker with his invincible Tiger Shot, Hyuga quickly becomes one of Tsubasa's greatest rivals, as the two have noteworthy duels throughout junior high school and high school, leading to them both being chosen to represent Japan in the World Youth Championship, with Hyuga serving as the point man for the Tsubasa-Misaki midfield duo. As the players start going their separate ways when turning pro, Hyuga chooses to go to Italy, where he joins Juventus F.C., but he has a hard time fitting in due to the sheer physicality of Italian football revealing his poor body balance. As a result, he is loaned out to A.C. Reggiana, where he has the opportunity to work on his weak points while helping the team on their campaign to win the Serie C1 season over Shingo Aoi's A.S.D. Albese; in spite of this, Hyuga remains a frequent name in national team call-ups.