Yuki is a person with a sharp tongue, and he is not afraid to speak his mind, but he is not essentially mean-spirited. He has little respect for those older than him and doesn't mind getting into an argument if he deems it necessary. This is a character trait Yuki got after people often commented negatively about his preference in looks and taste. To defend himself, he became someone who would stand up against such bullying. However, he would never mock someone for something they like or their .