InuYasha is the titular character of the anime series 'InuYasha'. He is a half-demon (hanyou), born of a human mother and a powerful demon father. InuYasha wields a sword called Tessaiga, which can transform and is capable of immense power. He initially seeks the Shikon Jewel to become a full demon but eventually allies with Kagome Higurashi and others to protect the jewel from evil forces. InuYasha is known for his brash and impulsive personality, yet he is fiercely loyal and protective of his friends.