Ooeyama Ryuu Goshinjutsu Doujou

is a japanese manga series written by KAKERU. It began serialisation in the December 2009 issue of Manga Time Kirara Forward.

The series was released under 2 volumes from August 2010 to March 2011.

Synopsis
Mutsuki Nakamura, a high school girl with a trouble constitution. Chikan is a daily occurrence, and sometimes weird people can follow us ... One day, Mutsuki, who was in trouble, was helped by a junior high school girl, Oeyama Natsu !? Mutsuki's growth story drawn by the genius KAKERU! All of Oeyama style self-defense is here, ants, our bride, a must read!

(Source: Amazon JP - Translated)