Inosuke and Aoi first met when Tanjiro, Zenitsu, Nezuko, and Inosuke came to the Butterfly Estate due to injuries after the fight on Mount Natagumo. They train together for a period of time before both Inosuke and Zenitsu decide to quit. The anime series adds a scene after the Infinity Train arc where Aoi tells Tanjiro and his group that she distracted the blacksmith Haganezuka, who had been chasing Tanjiro around, with dango sticks; Inosuke then says he wants to eat dango, and that gets Aoi to