--So I guess it's important that we come up with an 'enemy', right?

Depending on 'what we're fighting against' I think we could get a rough idea for general worldbuilding

Around the 3rd Magical Girl Meeting

Planet Usamin

What we're fighting against... Hm~

Abe Nana

Satou Shin

How about aliens or demons invading the earth?

That's what I've seen in most of the anime I watched for reference

Certainly that'd be the easy approach, but...

To think of a world fitting to us... I feel like we need something different

Let's think in terms of what we're fighting against in real life... what we're afraid of... that kind of thing

What we're afraid of... huh

Hya~ of course Nana is an eternal 17 year old, but suddenly my heart was gripped with terror by such a powerful concept~!

No, but speaking honestly

Rather than getting old... I feel like... my fear is the 'reality' where time is running out...

I've been struggling on as I fight for that lifelong dream of mine... but I'm still anxious and afraid.

Feeling that I won't have enough time to make my dream come true... A life spent struggling until you finally break and say 'I knew it'...

...Heart-chan, that's it!

I've just received a lil transmission! Let's go with that idea!

Huh?

I get it too...! I was always afraid of hearing that 'I knew it', so I ran away recklessly, covering my ears!

We should strive not to be the magical girls who offer dreams to children, but to protect the adults who follow their dreams... from the reality that laughs 'I knew it'!

I see~... Because if you revealed 'actually, I'm not 17 years old', 'I knew it' is definitely what people would be saying, right✩

Ahh what a strong defense~