Raimu is a beautiful teenage girl of an average build and height. She has long and wavy dark black (dark blue) hair and lilac-blue eyes. She is often seen having makeup and depicted in the standard Kitauji High School uniform for female third-year students.
- Raimu's lucky charm initials are "L.O." instead of "R.O"
- She performed the first alto saxophone solo in Takarajima (Season 2, Episode 7)