Nadeshiko Kashima

The student council vice president. She is much more refined and mature than Benio (who is the student council president). She is always the one who keeps Benio in-check whenever she is getting out of control. Benio often calls her up whenever she is feeling down, even if the cause isn't that bad. This is much to Kashima's annoyance—so much so that she often hangs up.

(Source: Anime+)