Nichiyu, however, left a bitter legacy such that his close adherence to Tanesada CHIBA entangled his school in conflict over succession of the Chiba family head among the potential successors, which resulted in his school adopting a policy which gave priority to carry on the school while having a cooperative relationship with secular powers and the other sects.
しかし、同時に千葉胤貞との密着は胤貞自身が盟主として擁立された千葉氏の家督争いに門流を直接巻き込む事になってしまい、結果的に世俗勢力や他宗との関係を保ちながら門流の維持を優先する路線を選択することになった。