Character belongs to Mizu-Merodii. Don't feel obliged to use it, though. Just for fun.
Everyone else, please don't use the icon. I mean, I can't stop you from stealing it and using it as your avatar on who-knows-what forum, but honestly, if you're going to steal an icon you should go find a better icon to steal. Taking my stuff is like robbing the Louvre to steal a napkin.