By the order of Edo bakufu, various Nenbutsu Kanjin Hijiri (groups of priests raising fund by reciting nenbutsu) were integrated into a single sect 'the Ji sect' and they were newly categorized into twelve schools ('Jishu Juni-ha [12 schools of the Ji sect]').
江戸幕府の意向により、さまざまな念仏勧進聖が「時宗」という単一の宗派に統合され、その中の十二の流派に位置づけられた（「時宗十二派」）。