To save the chaotic society by Hoke-kyo, Nisshin wrote 'Rissho jikoku ron' (the Treatise on Establishing the True Teaching and Governing the Country) in an attempt to convert the Ashikaga shogunate family to the Nichiren Sect (during this era, restless days continued as the peasants' uprising of the Shocho era and the rebellion of the Gonancho (Second Southern Court) force occurred) and was incarcerated for the attempted direct appeal (1440).
また日親は法華経によって、当時の乱れた世の中を救うべく（同時代は正長の土一揆や後南朝勢力の反乱などの動乱が続いた）、足利将軍家の日蓮宗への改宗を目論み「立正治国論」を著し、直訴を試みたが投獄された（1440）。