It was the rebellion led by Issei MAEBARA, a shizoku (family or person with samurai ancestors) from Yamaguchi Prefecture and the former Sangi (councilor), and Kensuke OKUDAIRA involving about 200 shizoku, which was raised in response to Shimpuren-no-ran War (turmoil of Shimpuren, dissatisfied warrior group) which broke out on October 24, 1876 in Kumamoto Prefecture and Akizuki-no-ran War (turmoil of Akizuki) on October 27th of the same year.
1876年10月24日に熊本県で起こった神風連の乱と、同年10月27日に起こった秋月の乱に呼応し、山口県士族の前原一誠（元参議）、奥平謙輔ら約200名によって起こされた反乱である。