is kind by nature and has been described by others as having very gentle eyes. He exhibits a great deal of determination and will not give up once he has a goal to achieve; the best example of this is his relentless quest to find a cure for Nezuko. He is a demon slayer virtue, generosity, honesty, and humbleness. He is gentle to a fault, preventing him from making decisive decisions but is later shown to be serious when he needs to be