However, the virtual monetary unit called Ei (Ei of Eiraku-tsuho) remained in place; i.e., Ikkanmon (weight of the coins and approximately equivalent to 1,000 mon of coins) of Ei equaled 1 ryo (a unit name for a large sum of money) of a gold coin, thus 1 Ei was treated as 1/1000 ryo.
しかしその後も永という仮想通貨単位(すなわち永一貫文＝金一両であり1/1000両を表す)は残った。