Ryuen is the eldest son of Shoseki. He opened his private school “Gingetsu-Tei”(Silver Moon School  ). He taught many students classic Confucian writings and calligraphy and was assigned a literary master of Kikuchi County.

He grieved over his son, Shuzo’s death deeply, and devoted himself even further into teaching as if to forget his loss.

Kinoshita Ison is one of his students.