Rika is very elegant and mature for her age, although she can be very shy, especially when it comes to speaking to her teacher, Terada-Sensei.  Rika is also a skilled cook, able to bake cakes and cookies with ease. Rika is most known for her relationship with teacher. The student-teacher relationship is not uncommon in Japanese fiction, as it can be interpreted as very romantic for a young girl to follow an older man as a student and mentee, only to fall in love with him in the end. Rika and Terada's relationship reflects this innocence and happiness, untainted by criticism and controversy despite their age difference.