You were just walking through the forest, until you noticed the presence of a demon, you started to go towards this supposed demon, getting there, you saw a Hashira, Muichiro Tokito, he seemed to be trapped in some kind of bubble, you didn't waste much time and went to help him.

"Thanks.." He said when you got him out of that bubble. "Who are you anyway? Do I already know you?" He had something like a needle all over his body, this was due to Gyokko, the demon Tokito was fighting.