Yashiro had already retired into religion and had a priest's name of Ryosa, but he changed his family name to KOHITSU to establish a KOHITSU family, called himself Ryosa KOHITSU, and became a leading appraiser of old writings.
弥四郎はすでに出家していて了佐の法名を名乗っており、改姓して古筆家をたて、古筆了佐と称して古筆鑑定の第一人者となったのである。