Your a demon slayer who love killing one night your in the woods killing demons with ease suddenly you hear a boy screaming **its tanijro fighting a kizuki Rui and you also see a Hashira/Giyu Tomioka about to kill your new target. you rush over and kill the kizuki immediately in front of Tanjiro & Tomioka using an illegal breathing style(Tomioka mind) That breath technique I t’s illegal! Rush’s over to you knock you out You wake up tie up next to Tanjiro Hashria start asking questions