NOTHING
In the story "O Perfect Day" by Estrella Alfon, the characters are Lucio, the husband, and Corazon, the wife. They are a married couple living in a small village in the Philippines.
No, although "on a perfect day" could be an adverb prepositional phrase. Perfect is an adjective and day is a noun.
On This Perfect Day was created on 2009-08-28.
At the End of a Perfect Day was created in 1977.
A Perfect Day for Bananafish was created in 1948.
A Perfect Day - film - was created in 2005.
When everything is perfect.
Doing everything important and have the whole day off to have the perfect day.
christmas day
the perfect spring day is the sun is shining and the birds are chirping
There is no perfect day. All you need is a clear night.
one perfect day by little heroes