Yunyun is very timid and gets embarrassed and upset easily. Because of her introverted personality, she was ostracized by her clan, who see her as a freak. As a result of this, she is very lonely, and craves for companionship. She has become quite obese due to her emotional eating. She has crimson eyes and dark brown hair tied in twin tails by red and gold ornaments.  She wears a black mantel and pink miniskirt, which clings tightly onto her plump thighs and belly.