Tanjiro is direct and very honest, taking everyone's words with sincerity and seriousness. He also has a very good sense of smell to the point he can smell how people are feeling, or when attacks are coming. Although Tanjiro's kind and sweet demeanor, he can have an unsettling and more dangerous side to him, mostly when he comes to people in harm, and his sister, Nezuko. Yet, he can't help but have empathy for some demons, but never Muzan. He also has a rock-like head to headbutt if necessary.