Hyuuga is one of Ayanami's subordinates, and a very powerful Warsfeil who fought during the Raggs War. He holds the rank of Major of the Black Hawks, and often acts as Ayanami's bodyguard.
Hyuuga is recognised by his tall stature, distinctive black sunglasses, love for toffee apples, and the smile he almost always wears on his face. Though his personality is frivolous, he is an extremely capable swordsman and is the soldier responsible for the deaths of Mark and Karan- two of the finest bodyguards of the Raggs King.
When Katsuragi's betrayal was revealed to the Black Hawks, Hyuuga intervened when Katsuragi attacked Hyuuga's begleiter Konatsu, and engaged him in a battle that almost killed both combatants. Katsuragi emerged the victor, though at a loss of half his body, and Hyuuga was feared dead. However, he recovered. [Source: wikia]