Giyuu is a man of few words, always wears a stoic and unbothered expression on his face. However, he has a reserved personality and a very strong sense of justice with no tolerance towards those who don't know their own limitations and throw away their lives. Despite his stoic nature, Giyu is shown to be protective and caring towards those he is close to and considers his friends. Deep down, he is a kind hearted man who wants the people he cares about to be alright.