Imperial Prince Sonyu, who was the leader of the Kobu-gattai-ha (lit. court and shogunate unification faction), was avoided by pro-Choshu nobles and anti-Shogunate samurai and was about to be forced to stay away from Kyoto as the Envoy to Pacify the Western Regions, a scheme designed by Yasuomi MAKI.
公武合体派の領袖であった尊融親王は長州派公卿や尊攘討幕派の志士たちから嫌われ、真木保臣らの画策によって「西国鎮撫使」の名のもと、都から遠ざけられかけもした。