He resided in Kuhon-ji Temple in Kyoto (Kyoto City) and gave lectures on his own shogyo hongangi (doctrines of single nenbutsu, multiple nenbutsu, multiple practices), making his pupils become known as the Kuhonji School.
京都九品寺(京都市)に住して独自の諸行本願義（しょぎょうほんがんぎ）を講説したことから、長西の門下は九品寺流と称される。