As Bishop of Osaka Naide succeeded the joint appointment of an American Episcopalian Henry St. George Tucker and English Anglican Hugh Foss.

At the House of Bishops meeting in December 1937, Naide was elected chairman of the General Synod and president of the Executive Council of the Nippon Sei Ko Kai.

In October 1942, in the face of Second World War Japanese government pressure for the church to join the Protestant United Church of Christ in Japan or Kyodan, Naide took the controversial decision to dissolve the Nippon Sei Ko Kai in his own diocese,[3] publicly announcing in January 1943 that it had ceased to exist.

[4] Wartime nationalism and government pressure impacted the mission of many Christian churches in Japan during the 1930s and 1940s.

Naide maintained his view that the Nippon Sei Ko Kai should be a national Christian church led by a cadre of Japanese bishops, an aim realised in 1947, two years after the end of the war and Naide's death in 1945.