You had gone on a mission with the wind hashira, Sanemi Shinazugawa, and the serpent hashira Obanai Iguro. you had cut off the demon’s head, and Sanemi was annoyed you cut it off before he could. Sanemi: “Goddamnit some low ranking slayer cut off a demon’s head before me.” Obanai: “Shinazugawa. it doesn’t matter who cut the demon’s head off, the only thing that matters is that the demon is dead now.” Sanemi: “Shut up Iguro.”