Ren watched coldly, as the man spoke back at him. Saying he wasn't human? What utter drivel. He didn't need useless human blood on his sword. It was just a pain to clean off later. His red eyes watched, as the man charged. Although it may have seen fast, to him it was in slow motion. A human's body was too predictable, hardly worth the challenge to a demon who had keener senses then them.
Ren quickly drew his out his scabbard from his sash. He held it so his forearm was protected as he easily blocking the man's clawed punch. He was stronger then most humans as he still felt a little wave of pain shoot up in his arm, but Ren's strength could hold him back. The man thought that he could block his sword it seemed, as his other hand was near it. How wrong he would be. With a grin, Ren shoved the man backwards as soon as the man's punch connected and using his super human strength to have him off-balance, before he brought his sword upward faster than any human could. The sword wanted to cut in an cresant shape, aiming for his exposed torso from his armor. From his left side of his hip, all the way to his right shoulder was where he aimed, as it was the most exposed part of the armor.
Though even if the man managed to block his sword strike, it would easily cause him to bleed blood despite the armor he wore. He had half the mind to even break that precious metal suit he wore...but to do that he'd need his full strength.
"You worthless cur...I'll make sure to painfully wound you and your stupid pride."