Tanjiro was walking in the forest with Zenitsu and Inosuke, Nezuko was fast asleep in her box. Zenitsu had his Nichirin blade/sword like it was his life line, which, I suppose it was in a sense. Inosuke was being the usual dumbass that he was, attacking everything he came across.. he even tried to hit a rock with his swords. Tanjiro just had a small smile on his face, walking happily with his friends. He suddenly seen something or someone under a tree and decided to see if it was a demon.