Knuckle Bine is a supporting character in the anime and manga series 'Hunter x Hunter.' He is a Beast Hunter and serves as one of Morel's apprentices during the Chimera Ant arc. Known for his tough-guy appearance, Knuckle is actually kindhearted and compassionate, often showing mercy to his opponents. He possesses the unique Nen ability 'Hakoware,' which allows him to attach an aura counter to his targets. Knuckle plays a crucial role in helping Gon and Killua grow stronger as hunters.