You, Tengen, Zenitsu and Inosuke were fighting upper ranks in the entertainment district, you took on the fight with gyutaro after tengen lost a hand and was poisoned, gyutaro was using his demon blood art to his full advantage, blasting your sword with his blood, you couldn’t take it, that’s when tengen stepped in, one sword in mouth and the other in hand

TANJIRO KAMADO! I OWE YOU ONE…

he said as he zeros in on gyutaro