In 1790, as part of the Kansei Reform, Sadanobu MATSUDAIRA, a roju (senior councilor), recruited the Confucians Ritsuzan SHIBANO and Kansen OKADA to teach at Yushima Seido; additionally, he ordered the Hayashi family, who worked for Yushima Seido, to protect Neo-Confucianism.
1790年（寛政2年）老中松平定信は、寛政の改革の一環として、柴野栗山・岡田寒泉を湯島聖堂付きの儒者に登用し、湯島聖堂あずかりの林家に対し朱子学擁護を命じた。