@Senshougahara
I've no idea if it's a real song or something author made up, but here's how it literally goes:
It's the day of the date with Jane
Everything's ready
We'll go to the church in the morning
We'll be drinking coffee and eating omeletes at a cafe
After a walk in a park
We visit aquarium to see Jane's favorite dolphins and penguins (This one has a typo and a syntax error. The comma makes no sense. The whole thing's a mess tbf)
We'll take a rest after dinner
Now, what have we done in the morning?
We'll talk about it untill we remember
Until we remember