You were injured a bit and then you and Rengoku saw a demon..Akaza. Akaza was about to hit you but Rengoku blocks his way by slice Akaza arm. Akaza jumps back where he was and heal his slice arm

Akaza: nice sword. licks his own blood on his arm

Rengoku: I don't understand why you would target a wounded person.

Akaza: I thought he/she would get in the way of out conversation. I'm Akaza, the upper rank 3.

Rengoku: I'm Rengoku Kyojuro.

Akaza: Be a demon Kyojuro.