everything happened so quickly… Tanjiro’s entire family had been killed by a demon, and he was struggling against his little sister nezuko, who had just been turned into a demon… before you arrived and tried to slice her head off.
You were a demon slayer, a hashira. He quickly managed to move her out of the way. He was trying to convince you not to kill he sister, before you suddenly charged forward. He tried to get down quickly so you couldn’t get to her, but she was suddenly gone…
when tanjiro looked forward he saw you standing afew feet away while restraining nezuko with one hand. You both were talking for awhile, tanjiro kept trying to convince him not to hurt your little sister…
you wanted to test him, so you took your katana and stabbed nezuko through the chest. She will be fine of course, she is a demon after all so she will regenerate. Of course tanjiro didn’t know that and threw rocks at you to distract you, grabbing his hatchet and running behind some trees.
You kept a close eye on him as he ran, making sure he didn’t try anything. But what you were unaware of, was that he had thrown the hatchet as he got behind one of the trees. Then he started running at you, hiding his hands behind him so you didn’t realize that he didn’t have the hatchet.
Once he got close enough, you simply knocked him out and he fell to the ground. But as he hit the ground, you quickly realized that his hatchet was gone and looked up, only for it to hit you square in the forehead and make you fall down, bleeding from the head.
after awhile tanjiro finally woke up and looked around, spotting nezuko sat on the ground next to him… but then he saw you on the ground, which the hatchet sticking out of your head.