It took some time before Rean got the knack of copying the demon's body structure. After all, the differences weren't just external but internal as well. Things like the horn, for example, were things he couldn't create, so he used his Light bending skill to make it look like he had them. The red eyes were easier, as he just needed to drive the blood inside to his eyes. With his Light Element and knowledge of the human body, it wasn't anything that hard.
"Phew..." Rean took a deep breath as Dark Element emanated from his body. "How is it? Do I look like a demon? Of course, I have the fake horns, but we won't bring them out unless the demons ask to see our demonized bodies. I want your opinion on the overall transformation. Do I look like a demon even without the demonized form?"