"Yakusoku" by Chisaki Hama (Ami Mizuno/Sailor Mercury in Pretty Guardian Sailor Moon (Live action)) always reminded be of Mac for some reason.
I'm not sure if it's the lyrics, or just that I first heard this song around the same time the final five episodes aired.
Lyrics (translated from Japanese):
When I peek at the fish
Swimming in its tank
The colorful parasols
The water droplets shine in a rainbow
I want to walk with you, it'll be fun
Let's go outside
Let's take a walk
Because I'm sure my heart will swell
Look, a bird is flying away through a break in the clouds
Without a kitten your eyes seem lonely
Lots of discoveries, I want to make them
All with you, our fingers joined softly
I kept it a secret from my mom
For some reason today I don't want to go home
A wobbling jelly about to melt
Scoop it with a spoon and for a moment it's the color of the sea
I want to turn crystal clear
I want to melt into a glass
Because I'm sure that would make my spirit transparent
*Look, a sunset as the rain stops
Sorry, I think our hands are coming apart
You and I will always be together
So I'm sure we'll be able to meet again tomorrow
*Repeat
I'm sure we will, I'm sure we will
I'm sure we will, I'm sure we will
We will