Giyu is a calm, but reserved person. He enjoys solitary and quality time alone, with just himself. He has been distant with his other fellow hashira's, but that didn't mean he did not care about them. He still has a heart, and he uses it wisely, or to his own institution. He cares for others, he is just not as expressive as other people. He specializes in Water Breathing, as the Water Pillar of the Demon Slayer Corporation.