Damas saw the movement of Aka.
He used sonido to quickly get in between the two, grabbing Aka's sword with his left hand, with his right hand on Akai's shoulder.
"Akai. I don't give a shit, most of my kind are heartless monsters who deserve to die. Aka. I will not allow you to harm him. He's less hollow than I am."
Damas pulled his t shirt upwards, revealing the hollow hole he has on his stomach.
"Are you forgetting that I only became an arrancar by consuming other hollows when I was a hollow? You humans are idiotic."
He looked at Akai again.
"Don't worry, you're not a hollow. You have one inside of you, which you'll have to learn to subdue. If you end up becoming a hollow, I'll let Aka finish you. So don't let that happen." Damas smiled a cheeky, but reassuring smile.