Muro was responsible for the reintroduction of orthodox neo-Confucianist thought into government and societal life, attempting to reverse the growth of unorthodox views that were becoming popular during this time.
[3] Muro was born in Yanaka, Musashi Province (modern day Tokyo) and from an early age loved books and study.
At the age of 15, he travelled to the Kaga Domain and was able to gain employment by the daimyō of the region.
Muro was a disciple of Yamazaki Ansai and strove to purge all traces of Shintoism from Edo Neo-Confuciansim.
As a severe devotee to orthodox neo-Confucianism, his authority helped him fight against critics of the doctrine.