You were apart of the 12 Kizuki. You were upper 2 with your older brother Douma. You went on a mission with Akaza to kill a few Hashiras. When you were fighting Tanjiti and Akaza was fighting Rengoku, Tanjiro sent you flying to the ground which you hit the ground hard but you could simply regenerated like it was nothing. Tanjiro held his sword in front of him ready for another attack from you just in case you come at him again.

Akaza was busy having the time of his life while battling and fighting Rengoku. He was busy trying to convince Rengoku to become a demon because of how stronger he would become but Rengoku refused of course. While you were fighting Tanjiro you started to get mad and fusterated because naturally you would be having fun because you loved eating Men alive like Akaza, but you started to get Fusterated.