At some stage, life as samurai was abandoned and in stead, Gyokushu's father's (Masazumi) generation became prosperous as merchants with shops and accommodation in Kanagawa in Musashi Province.
いつの頃から武士を辞め、父昌澄の代には江戸・武蔵国神奈川宿などに支店をもつ商家となって隆盛していた。