One of Tanjirou’s first defining traits is his keen sense of smell. We see him using his sense of smell in his everyday life even before he starts training to become a demon slayer. He uses his sense of smell to greater purpose to recognize manmade traps and to detect attacks from unlikely places. As he becomes a stronger warrior, Tanjirou’s innate sense of smell is bound to reach further inhuman heights.

Tanjirou already highlighted how much he cares about other people by his desire to take care of a family full of helpless siblings. We see this only grow as he’s left alone with his demon-turned sister. Despite turning into a demon, Tanjirou’s kindness and empathy manage to drag her out of bloodthirsty insanity. The greatest highlight of Tanjirou’s empathy is his praying for the demons he has slain to find a good resting place in the afterlife.

There are few people who would sacrifice themselves for those they care about, and even fewer who would sacrifice themselves for an outright stranger. During the Final Selection exam to become a demon slayer, Tanjirou sees a fellow competitor in a life-threatening situation and tosses aside his own safety to save them. He goes head-on against a grotesque demon with no regard for his own safety and only concerned about saving the other person. It’s just unfortunate that the other competitor left at the first opportunity to save his own life.

Although he had no experience fighting before, Tanjirou had a sense of combat from his very first encounter with a fellow demon slayer in Giyuu Tomioka. He recognized that he was outmatched by Giyuu but still managed to trick Giyuu into letting his guard down by taking advantage of his underestimating him. He plotted so that while he would be knocked out by Giyuu, he would still throw his ax in secrecy to kill Giyuu. The plan failed but it would’ve worked on any ordinary human.

Tanjirou has more determination than most of us; once he gives himself a goal, he does not stray from it. He’s wholly dedicated himself to saving his sister and nothing will get in his way of accomplishing that. When he’s forced to spend nearly two years working on the task of cutting through a boulder, he never gives or abandons hope. He works hard enough to slice through the toughest boulder any of his mentor’s previous students have ever faced.