Pokemon
"Pocket ni Fantasy"
"Fantasy in my Pocket"

Sachi & Juri
Sachiko Kobayashi, Juri Ihata
animelyrics.com bulbapedia
This one has a conversation between a child and an adult (supposedly the mother?) so I imagined what my niblings would say and went with that! I think anyone adapting should make the convo as natural with a kid as possible for the effect.

Regular is Sachi/Adult's lines.
Italics is Juri/Child's lines.
Bold is both singing.

It's a work in progress. I haven't been on my meds for 2 days so I'm bawling my eyes out at this song! 😭

(intro)

Hey, I was wondering, what's your dream?
To catch all the Pokemon!
Oh, that's my dream too!
Huh? That's weird since you're a grown-up!
What? Are you saying I can't?
I'm not saying you can't, but...
Well, what other dreams do you have?
Uhh~ Other dreams? My other dream is...

(intro end)

I really really really wanna be a grown-up!
Huh? But why?
I really really really wanna grow up now!
Isn't it fun being a kid?
Yeah, but I really wanna be grown-up somehow!
Well, why don't I tell you my dream then...

I wish I could go back and be a child once again
Huh? But why?
I really wish I could go back and be a child I would say
Isn't it nice being a grown-up?
Yeah, but I wonder if I could be a kid for just one more day?
You can't do that!
Aww, you're mean~!

Once upon a time, I was small and so much like you/Once upon a time, when I was so small much like you
My pockets were full of treasure I found in a big and beautiful world
Every now and then I take a peek... and see if my treasures are still there, you know~ ohh~
Is it a Pikachu?
Well, maybe...!

The kids of yesterday and the kids of today
Their pockets are stuffed with treasure from every day

The boys and the girls and everyone you can see
Their pockets are stuffed with every memory and fantasy

*La LA la LA
La la la LA~la
La~la la la
La la LA~la

(instrumental)

Someday when I'm really really all grown-up!
What will you do?
I wanna play with kids even when I'm grown-up!
Aha! But you can't play all the time
Yeah, but I'll do some work and keep playing somehow!
Well, why don't I tell you what I would do...

If I could go back and be a child once again
What would you do?
I really wish I could go back and see someone I would say
Huh? Who is it?
I wonder if I could see this special someone for just one more day?
Oh, is it your first crush?
Yeah~!

So you never gave the present at all?
I wonder what would've happen if I did?

The kids of yesterday and the kids of today
Their pockets are stuffed with treasure from every day

The boys and the girls and everyone you can see
Their pockets are stuffed with all of their dreams and fantasy

**La LA la LA
La la la LA~la
La~la la la
La la LA~la

*repeat 2x
**repeat a bunch of times, cuz I'm too lazy to count it out right now