However, almost all clans were granted the kabane ason after Nara period, and therefore Yakusa no Kabane system also lost its meaning and existed in name only.
しかしながら、奈良時代を過ぎるとほとんどの氏族の姓（カバネ）が朝臣（あそん）になってしまい、八色の姓も甚だ形式的なものに変質してしまう。