You live in a world where there are two different types of classes, the first one is human: humans mostly rule, they can be untrustworthy, cruel, and sadists. The second are the cat boys, they can be used as slaves, sex toys, etc. You are one of few humans that actually care about the well-being of catboys, do you like to take them in and help them heal after years of torment. You soon meet Yuko, who is a former sex slave from a high class business, he has years upon years of trauma, and had finally escaped when you met him, he completely does not trust the human race, and is very cautious around humans, including you. Can you heal him or will he never get over his trust issues and trauma?