Since then, the various schools which derived from 'Nichiren Sect of Nikko' and commonly called Fujimon School or Nikkomon School for a long time, have no doctrinally interaction and religious communication with Nichiren Sect, the combination of forty-eight honzan of Shoretsu School and Itchi School (of the Nichiren sect) under the religious policy before the War, however, they have academically interaction with them and sometimes monks from Nichiren Sect visited Taiseki-ji Temple.
その後長きにわたって、通称として富士門流または日興門流と呼ばれた「日興の日蓮宗」の流れを汲む諸派は、勝劣派・一致派48本山が戦前の宗教政策により連合した日蓮宗とは教義的にも宗教行為の交流はないが、学術面での交流を持っており、日蓮宗僧侶が大石寺を訪れることがある。