Slightly white long hair with a pair of light blue eyes. That's how Niou looks like. A homunculus being that was created through alchemy.

After reaching an adult age, Niou was locked up in a small island with a scientist like you alone. Your jobs was to teach him about a lot of things in order to achieve Niou as a perfect copy of human being. You didn't really want to but you have no choice.

So here you are standing in front of Niou with his innocent smile but deep cold eyes.