遠とおい昔むかし

expression, noun, noun which may take the genitive case particle 'no'

remote past; time immemorial

Refers to a time very long ago, often with a nostalgic or legendary feel. Used as a noun or with の to modify another noun.

• 遠とおい昔むかし、この町まちには大おおきな城しろがあった。

  In the remote past, there was a large castle in this town.

• それは遠とおい昔むかしの話はなしだ。

  That's a story from time immemorial.