This prompt is based on this image I found on Pixiv: https/artworks/45100614
Part 1: Sumireko Visits
At Kasen's hermit world.
Kasen is just chilling out with her pets.
"Yo, Kasen!"
Sumireko is visiting Kasen.
"Hello Sumireko. What brings you here today?"
Sumireko pulls out a box of what seems to be DVDs. (For this prompt I assume Gensokyo has televisions and DVD players outside of Yukari and Rinnosuke.)
"Shall I interest you in an anime called Pretty Cure?"
Kasen seems confused. "But why?"
"Last time I came over, I went to Moriya Shrine and talked to the wind priestess about anime. When she expressed a surprise that there's content after Splash Star, I got the idea of introducing the series to everyone." (For Sanae, I assume she entered some time before the game releases, between Splash Star ending and Yes! 5 airing.)
Kasen looks unimpressed. "Fine, I'll check it out."
"Okay, see you!"
Sumireko fades, seemingly a sign that she's about to wake up.
Part 2: Kasen's Marathon
After Sumireko leaves.
Well, I guess I'll check it out... Kasen thought to herself.
And so she did.
She basically marathoned through each season up to date in between visiting Reimu, Sumireko visiting ("I knew you'd enjoy it!") and deal with Seiga and Komachi.
Komachi isn't too interested, but Seiga on the other hand...
"Ara, what are you watching?" Seiga burst in as Kasen is watching Heartcatch.
"None of your business."
"Interesting..."
Then Seiga leaves.
I hope she isn't up to no good... Kasen thought to herself again.
Part 3: The New Big Thing
Guess Sumireko's idea worked. When Kasen visited everywhere else, she can hear other named characters discussing about the franchise.
Sanae suggests to form a team with Reimu, Marisa, Sakuya, and Youmu. Marisa laughed.
The Bunbunmaru had a special edition investigating the fad.
The Grassroots joke about Wakasagihime being part of Tropical Rouge. (The one with a mermaid. I had to search it up.)
Parsee... the weird comparisons did NOT help.
The SDM had a wild time. Well, that's why they call it the Centennial Festival for Magical Girls!
Alice adds to her collection some custom Fumos of the characters.
Even the PC-98 cast caught wind via Marisa telling Mima.
Part 4: The Part that Inspired the Prompt
As Kasen passed by Miko's Place...
Miko, doing a Heartcatch cosplay, said, "Hey Kasen, come in!"
What the heck?
Kasen couldn't believe what she saw INSIDE.
Futo and Seiga are also cosplaying.
This is your idea, isn't it, Seiga? I should've just turned off the TV when you came in. You don't even match the characters! Even Doki Doki works better. It matches your Waku Waku.
Kasen cosplayed anyways and the rest is history.
