What makes this koinu so rare is the fact that he (as a male) has fur on his joints and doesn’t have whiskers (meanig he’s dead as koinus head out of their whiskers, their ears are more for communication underwater) the fur is a genetic mutation that often comes with aggression and the ability to protect pups better than most He also doesn’t have webbing between his toes which is more of a birth defect and May hinder his swimming skills He also has his fill in his neck instead of his face which helps with breathing and is a bit more rare