Mui has thigh-length shiny black hair that has a pink triangle hairclip on the left side with bangs hanging on the right side, deep pink eyes, she is decently well endowed, at least in proportion to her small stature where she is slightly short for her age, being noticeably shorter than almost all other female characters.

She is usually seen wearing the uniform of Subaru Magic Academy which is that of a white shirt with blue accents along the cuffs a well as the collar and a brown miniskirt. A 