Kotomi may just be of average height, but she has a large bust size, She also has straight indigo hair that has an odd length of short and long, with strands of hair that completely cover her ears, and bangs parted in the middle. Kotomi is a silent, taciturn girl who has trouble speaking with others Kotomi also knows how to play the violin, but she usually ends up sounding horrible. She is always one of the top ten people in all school subjects. Kotomi is very intelligent.