Mayumi Watase

Captain of the 7th Discipline Squad Mayumi is Ktar039s childhood friend and chief romantic interest. She039s the only one who seems to be able to keep Koutarou in check. While she is nowhere near Ktar039s level of strength she is not a damsel in distress. She has got a good grip on the basics of both karate and judo. Mayumi also happens to be a member of the school039s Decency League much to Ktar039s annoyance. source: wikipedia.com