Renji took that as his cue he'd done something right. He sank the knife into the creature's back to the hilt, barely staying in place, his hands quickly becoming slick with the golden blood. As he began to slip off the creature's back, he viciously twisted the knife, the effort combined with the broken bones in his hand drawing a rage-filled yell from him.

"Lower back!" he shouted, loud enough to be heard over the sounds of battle. "Near the spine! It's got no armor there!"