Ichijyoma Mankitsu Gurashi!

It's autumn. The grand athletic meet at Amamiya Girls' Academy has begun.
Meiko tries to have fun without a care in the world, but this girls' school is on a different scale.
Led by Rie, the acting chairwoman, there are stacks of cash flying and expensive props on display, with a plethora of competitions where money is poured in.
The gymnastics uniform is bloomers. And the grand prize is a whole Wagyu beef cow.
In order to feed the beef to her younger siblings back home, Meiko aims to win...!

While cleaning out the store's warehouse, Meiko and her friends find a photo booth and decide to take pictures together.
Marika finds an item from her embarrassing past that she had sealed away and tries to secretly dispose of it.
But someone is closing in on her...
Meiko, Rie, Oto, Michika, and Suzu use their respective skills to work together to find the kidnapped Marika.
Who is the culprit, and what is their motive...?

Meiko and the others spend Christmas together at the shop, and are happy about this connection.
Then, at the end of the year, Meiko decides to take Rie home with her.
Rie still thinks Meiko is the manga artist "Morita Meiko" and wants to see Meiko's childhood home.
Meiko realizes that the misunderstanding hasn't been cleared up and becomes very flustered.
Determined to keep it a secret, she tries to interrupt Rie and Mizuori's conversation, but...!?

Meiko's secret is finally revealed, and the true identity of the manga artist "Morita Meiko" is uncovered.
Berna's report reveals everything.
The misunderstanding is finally cleared up, and Rie and the others accept it without anger.
However, Meiko suffers from the guilt of not being able to tell them herself.
Determined to face Rie and ask herself if things can continue like this, Meiko...