Following the new constitution, the reformist group abolished the position of 'Hossu,' effectively the Shishu (leader) who had passed down the tradition of Buddhism particular to Hongan-ji Temple since its establishment by the founder of the sect, Shinran Shonin, and instead established a new position of 'Monshu' (chief priest), which was regarded as a symbol of integration between sects and which lacked authority, and attempted to install Kocho OTANI in the position, however Kocho rejected the promotion.
これによって、これまで、宗祖親鸞聖人以来の本願寺の法統を伝承する師主（指導者）という位置付けであった「法主」を廃し、権限を有しない宗派統合の象徴という位置付けの「門首」を新たに設け、光暢をスライド就任させた（光暢本人は就任を拒否）。