Against the background of such situation, the three sects including the Kenpon-hokke sect (the Nichiju school) which was 'the Shoretsu school saying Shakya-muni was honbutsu,' the Honmon sect (the Nikko school) which was 'the Shoretsu school saying Nichiren was honbutsu,' and the Nichiren sect formally dissolved each sect and merged on an equal footing (the merger of three schools).
このような時勢の後押しを受け、「釈尊を本仏とする勝劣派」である顕本法華宗（日什門流）「日蓮を本仏とする勝劣派」である本門宗（日興門流）と、日蓮宗が、形式上、それぞれの宗派を解消して対等の立場で合併（三派合同）。