We join Homura in a math classroom, listening as the teacher describes an upcoming exam. "We're so close to completing the song of the Rainbow Notes! Yuki found one during the Dance Festival a few days ago..." she explains via voiceover as we see a flashback from the previous episode.
"Pay attention!" The teacher suddenly jolts us back to the present. Homura sighs and listens as the teacher drones on about equations with two variables. "So I'm here in math class, and who am I to worry that the Black Realm will crash the exam again? Furthermore, I've been struggling with the material too."
[OP: DANZEN! Futari wa PreCure (Flash Fire ver.)]
In the Black Realm, Lady Dischord admires the scene of Homura trying to pay attention. "Interesting...the beings on the Green Plains must pride themselves on intelligence..."
"Indeed they do, my lady." Yende replies. "They spend hours upon hours learning all that they can about their world--for they believe intelligence is the most important facet a being can have." He shows a scene of a boy taking an exam to illustrate his next point. "When the guardians of wisdom want to see how much their students have learned, they give them an exam over it."
"Try finding something natural about studying for a test, Lautia!" Bruyant snaps from his bed.
"I'm not worried about the exam..." Lautia assures Bruyant as she studies the image of Homura, Aiden, and Yuki walking.
"You're not?" Even Ruida is surprised.
"I have a better idea--turning the weather of the Green Plains to my advantage!" Lautia confidently replies
[Episode title: "The all important grade! PreCure's marathon study session!"]
"Thanks for coming to help study, guys." Homura smiles as she, Yuki, and Aiden arrive at her house.
"Not a problem." Aiden replies. "We can go outside when we finish, provided it doesn't rain."
"Mom, why does Homura get to have friends over?" Hikari whines.
"Your sister has an important test to study for, and she feels having her friends to help will help her learn the material." Mrs. Boukeno replies. "So play quietly so she can work, okay?"
"Okay..." Hikari sighs.
In Homura's room, Hinote balks at the numbers, symbols, and letters on one page of Homura's math book. "Goodness! I didn't know numbers like this even existed-hino!"
Yuki, meanwhile, is walking Homura through solving an equation with two variables. "To start, you need to combine like terms, so 3z and 2z become 5z..."
"How can z's like each other?" Hinote is confused.
Yuki's and Aiden's DSes shake and Kouri and Eika appear. "Cancel out the letters-kori!" she suggests.
"What do letters have to do with math?" Eika is equally confused.
Homura keeps erasing and rewriting and erasing and rewriting with the pegasi's suggestions until there is a big black smudge on her paper. She growls and snaps at Hinote "You're not helping very much, you know?"
"I was only trying to help-hino!" Hinote protests.
"Hey!" Eika dissapates the oncoming fight. "This is Homura's homework, so she should figure it out herself." she tells Hinote.
"As I was saying..." Yuki sighs before giving Homura more paper. "Start by combining like terms, so the 3z and 2z become 5z."
"The sooner we finish studying, the sooner we can play outside." Aiden assures Homura before the rumble of thunder outside gets his attention.
"You were saying?" Homura sighs as rain begins pelting the window.
[CM break]
After a while, Homura is still not making any progress on another equation. "We'll never get finished at this rate!"
"You said it." Aiden agrees. "We've been at this for what, four hours?"
"Actually, we've been studying for two." Yuki replies. "But if you two need a break..."
This is as far as Yuki gets before the wind begins picking up outside. "Must be some storm outside...." Aiden gasps.
"But how many storms do you know are caused by a monster raindrop-eiko?" Eika asks, gesturing to a humanoid raindrop that is rampaging down the street from the window.
"It can't be!" Homura gasps. She sets aside her books and paper. "Come on!"
"What's happening?" Hikari peeks from her room, concerned.
"Aiden, distract Hikari for a minute, please..." Homura calls as she and Yuki dash into a hallway closet.
"Gotcha!" Aiden replies.
Once Homura is sure she and Yuki are not being followed, they jam the music note game cards into their DSes, join hands and call "Dual Elemental Fury!" sending a wave of flames and ice over them.
Inside the cocoon of flames and ice, Homura's body, now glowing red, first gains a ruffley shirt-like outfit, colored red, gold, and orange, before gaining a matching skirt in the same colors. Yuki gets the same sort of outfit on her glowing blue body, only hers is colored in silver, light blue, and dark blue. Homura next gains some black fingerless gloves, while Yuki gets some white gloves that have fingers. Homura's next piece of clothing is red pants with gold trim and brown shoes, with a gold bow with a red button on the shirt to finish. Yuki gains some light blue pants with silver and dark blue trim and white shoes, with a light blue bow with a dark blue button in the center.
As the cocoon clears, Homura steps onto the grass and challenges the raindrop-Urusainaa. "The flames of a pulsing rhythm, Cure Ember!"
"The lullaby of a winter's night, Cure Glacier!" Yuki agrees as she joins her partner.
"We are PreCure!" both call to no one in particular.
"Aura Shield!" Eika calls, surrounding PreCure in a yellow glow as the Urusainaa unleashes a wave onto them.
"Good thinking, Eika--Ember has a weakness to water, and I don't know if Glacier will be able to help either." Aiden notes as Ember scrambles away from a wave of water.
"Glacier's defeated water Uusainaas before-kori..." Kouri notes as Ember tries to kick at the Urusainaa, only to be whacked away.
"That's right-hino! A kick or punch from Glacier usually freezes water into ice!" Hinote notes, the hiss of Ember's attack meeting water punctuating his point.
"Ember may not be a total loss..." Eika interjects.
"Huh?" Aiden, Hinote and Kouri glance at Eika, confused.
"We'll use her as a distraction, while Glacier attacks it and freezes it from behind-eiko." Eika explains. "The attack will then freeze the Urusainaa completely, which PreCure can then shatter with Frosty Fever."
Inspired, Ember sticks out her tongue at the Urusainaa. "Hey, drip-drop! Come and get me!" she taunts.
The Urusainaa begins to chase Ember around the yard, leaving puddle footprints in its wake. After wearing the Urusainaa down some time later, Ember runs behind a bush and whistles to Glacier, who jumps down from a tree branch and kicks the Urusainaa in the head, freezing it completely!
Ember takes that opportunity to charge a fireball. "Fire of a beat eternal..."
"Melody soft as falling snow..." Glacier says as she charges an ice ball.
"Together with the songs of PreCure..." Ember continues, holding her ball high.
"Let all the world sing of the promise of love!" Glacier adds, holding her ball high.
"PreCure...Frosty Fever!" With that, both balls are slammed to the ground, making a wave of fire and ice engulf the Urusainaa, returning it to a normal raindrop and healing what damage was caused.
"You saved my neck--how can I ever repay you?" Ember smiles as both Aura Shields fade away and the skies begin to clear.
"It was nothing!" Glacier replies, taking a moment to savor the sun on her face. "Let's go back inside and finish studying."
The scene fades to the classroom some days later, where the bell rings as the last few students, Homura included, enter and take their seats. "Here are your tests, you may begin." the teacher notes as she hands out the test papers.
Homura starts on a problem as she narrates via voiceover "Despite the Black Realm, we went over all the material, and thanks to Yuki's help, I felt like I could pass the test. But the study session will be even more memorable!" Homura smiles as she checks her answer--the answer she got and the calculator's answer match!
[ED: Ganbalance de Dance ~Melodies of Fire and Ice~]
[NEXT WEEK: "The miracle of life! Protecting the earth's creatures!"]