The weaker relationship of 'instructor-pupil' (Onkyu was not provided for and the leader-follower relationship was formed in times of emergency), for example, was adopted by the Date clan and the Yuki clan.
これよりも結びつきが低い（恩給は与えず、有事の時に指揮・被指揮の関係に入る）「指南・被指南」制度を採った伊達氏や結城氏の例もある。