Follow Your Passion: A Seamless Tumblr Journey
It's so funny to me that to the people whose Tanjirou isn't able to befriend much, they somehow get closer to those dear to him.
Like with Sanemi and Nezuko, or Ume/Daki befriends Kanao (Gakuen).
He can't influence the Tanjirou's effect on them so he passes it to his sister and gf.