Tsukasa is the classmate of Junichi and is also the class representative of Class 2-A. She is very hard working, and often takes the jobs that her classmates do not want. Her study habits, looks and personality are perfect. She is popular with the students, and is also seen as a reliable student by the faculty. Her hobbies include reading in a quiet place, as such she often appears to be in the library after school.

Her arc is the 6th arc to be shown in the Anime.