Kopaka is noble and reserved. Upholding his own strict moral code, he strives to be perfect and always “do the right thing”. A fact that often makes him appear a little cold in the eyes of the other Toa. Luckily, Kopaka’s not too solid direction sense helps the heroes remember that, after all, Kopaka is just a Toa like them.
Learn more about the Toa and their quest here: http://www.lego.com/en-us/bionicle