Mem-Cho is described as attractive and cute, with aqua-colored eyes and brown hair dyed blonde, complemented by a playful cat smile and small devil horns. Despite being twenty-seven, she possesses a youthful appearance that belies her age, often mistaken for a high school student. This contrast between her mature age and innocent appearance adds depth to her character, emphasizing her ability to navigate between different personas seamlessly. She is secretly 27 years old.