Spoilers from included and/or represented works abound. Please read this fiction carefully.

Renegade Amitie is fighting against Regime!Akuma. Draco and her counterpart is fighting each other. Amitie, Raffina and Sig against Regime!Yu and Regime!Rei. And so on, with Frozen Undine and Doomsday even present. And then...

"Bayoen!"/"ばよえーん!"

Knocking the Rukasazo there, saving the resistance. It's Arle Nadja, accompanied by Carbuncle, Dark Prince, Schezo Wegey and Rulue.

"That's enough!" Arle confronts Regime!Akuma. "Go back to your library!" *magic kicks him*

Regime!Akuma tried to beat up Arle, but the latent godly powers from Arle, activated by the Seraphim Orb prior to her jumping into this timeline, she was able to not only endure, but shrug off. Regime!Akuma reacted by kicking her.

"Arle modeled her dynasty after the rule of a goddess named Lilith." Regime!Akuma argued. "We allow no insurrection!"

"Take care of those regime representatives, I'll Tetris that bear!" Arle told her associates.

Arle already knows Tetris, and is aware of its speed advantage against Puyos. She put this to a good use against Regime!Akuma.

"No... beared...! Ku-ma! Ku-ma!"/"マ…！クマッ！クマ！クマ!!" Regime!Akuma is defeated.

"Your evil must end." Arle then froze Regime!Akuma. "That'll hold you long enough."

Suddenly, Renegade Amitie in her Red state is possessed by Ecolo who... wait... he's possessed by someone suspicious, while possessing Renegade Amitie!? And so, she laughs maniacally and smashed some things with magic. Everyone looks at her in shock.

"What the..." Dark Prince is terrified. *weeps*

Renegade Amitie lands down.

-*giggles* "Not so lyrical, is it?"/"夢みたいではありませんか?" ...'cause Renegade Amitie seemed off, even with being the possession.

Arle approached from behind, so Renegade Amitie tried to snack her with the staff. Arle simply grabs the staff, and then use it to take off the Puyo hat, knocking her off both the possession and the Red state completely, leaving the hat and a possessed Ecolo.

"Here's your chance to make right what went wrong." Arle told Renegade Amitie. "I would take it."

This timeline's Ecolo simply went away in apparent shame. However, unbeknownst to everyone thus far, he's actually possessed by the Anti-Life girl through the Anti-Life Equation.

Then, a wave of resistance's police is chased by the regime's clients of Spacetime Detective Agency, now led by Time Paradise Company. Specifically, Regime!Zero (ゼロ) and Regime!Eight/Hachi (ハチ) are leading the charge.

Suddenly, a wave of magic stopped the forces, and Arle and the Dark Prince arrives.

"Are you ready, Arle?" Regime!Eight called. "To take on the unity of space-time?"

"Yes." Arle and the Dark Prince together. "We are!"

The main timeline's client, led by apparently possessed Seo, appeared on the nearby buildings. Seo commanded, and the ranged clients fired magics to the forces, then the melee-able ones charged ahead. The forces led by Rukasazo!Time Paradise defended themselves, leaving Regime!Zero and Regime!Eight against Arle and the Dark Prince.

"You're not wanted here." Regime!Zero replied.

"Duo versus duo, Puyo Puyo battle!" Arle and the Dark Prince begins the battle.

The four played a hardcore match of with Tsu rules, went 2v2 and all out. Under the friendship rivalry and the expertise, Arle and her Satan overcame the powerful Time Paradise moves and flooded it to the 'X' level. Team Regime ultimately struggled, and their takeover became for naught. Arle and the Dark Prince prevailed.

"Love has triumphed!"/"愛の勝利だ!" Dark Prince declared.

"That's not love!"/"違うってば!" Arle refuted.

"We may not be wanted, but love is clearly needed!" Dark Prince mused, only for Arle to slap him.

While the cilents of two timestreams fight against each others, Arle and the Dark Prince went to Seo. By the time they've both approached, the Rukasazo version of the clients were being overpowered, and are retreating.

"Mission report." Seo reported. "The duplicates are being purged, as we've broken into their ranks. They're retreating. Probability of victory increased by 24 percents."

"Good." Arle replied. "Once they've pushed back, we'll need help with rescue and recovery."

"I'll break off a legion as quickly as possible." Seo responded.

"Thanks, miss CEO." Dark Prince thanked. "You've made this look easy."

"Let's get through this first." Seo suggested. "Then tell me how easy it looked."

"We'll need to-" Then Arle is knocked out alongside the Dark Prince by a bus into the ruins of (this timeline's) Primp Town, crashing into the Precise Museum (the active library).

Then Cyber-Salde Canarl Shellbrick Type-3 (サアルデ・カナール・シェルブリック三式ロボ) landed there, and flipped the bus, then grabbed both. Arle and the Dark Prince did boosted Heaven Ray to free themselves, and then gets engaged in a first fight with magic. The fight is eventually brought over to a random hijacked starship by a rift in the Primp.

"What? Ocean Prince...?" Arle got up. "You are... a machine?"

"I got eaten and stripped to the bones with every defeat... I only returned because of the Star Lantern." Cyber-Salde told Arle. "Now, how about I return you the favor... but permanently, forever? I am Prince Salde Canarl Shellbrick III, and now I shall savour you!"

"Then you'll live not only disappointed... but be eaten and then dissolved through metabolism!" Dark Prince mocked Cyber-Salde.

"Very well... Puyo battle!" Cyber-Salde wound up Puyo-beatdown and started Puyo brutality.

Arle and the Dark Prince fight against the cybernetic Ocean Prince, and the cybernetics proved to be durable, protecting Cyber-Salde from all kind of physical impacts. Arle and the Dark Prince has to unleash their magics to even the playfield, and it's bloody but worth it, because it ended with a beatdown syncing a large Puyo chain to put an end to this timeline's Ocean Prince.

Cyber-Salde is then shown stripped to the bones as in fish form and leaving a mangled load of cybernetics and exoskeletal remains.

"Cyber-Ocean is doomed." Dark Prince got up. "Straight to Puyo Underground!"

Arle threw the remains of Cyber-Salde out of the way. The duo then saw a rift and entered it, but...

"I knew they'd pull you over eventually." Regime!Arle caught her counterpart in the remains of her own timeline's Madou. "You and your Prince do not belong here." *drops Schezo and Rulue*

"Argh!" Schezo and Rulue both fell down, visibly beaten up and bloody.

"Oh no! Schezo! Rulue!" Arle noticed.

"Gu gu gu gu guuu!"/"ぐぐぐぐぐー!" Carbuncle caught up with Arle and the Dark Prince.

"Oh, so you're with the duplicates of my dearlies." Regime!Arle recognized them all. "And... you're a friend of one of those I spotted from an alternative version of your timeline."

"My friendship don't get tarnished at the borders of our dimensions!" Arle argued.

"I am this timeline's savior." Regime!Arle dismissed, and believes that she perfects her timestream. "I protect it. I nourish it. I train it."

"That's what happening out there?" Dark Prince argued. "Protection!? Nourishment!? Training!?"

"Disobedient subjects will be punished." Regime!Arle dismissed.

"Subjects?" Arle is ridiculed. "We're not exactly gods. And we don't really decide who goes on. Like who lives and who dies. Or a typical Puyo stack."

"The decision is mine!" Regime!Arle scolded her counterpart. "It became mine when that Anti-Life girl Feli turned Rulue into a serial killer who murdered my besties, turning me into a weapon of mass destruction!"

"What? Anti-Life...?" Dark Prince heard it.

"I know what you've lost." Arle told her counterpart.

"And you judge me!?" Regime!Arle keeps scolding. "After I've killed you, I'll trap all duplicates here. When they all see how I've perfected existence and realized their folly, they'll-"

"They'll be extra afraid, disgusted and depressed!" Arle scolds back. "If they are to be forced into this timeline, they'll go-"

"They'll be alive!" Regime!Arle refuted.

"Guuu!?"/"ぐー!?" Carbuncle is shocked.

"Carby, Dark Prince, Schezo and Rulue, as that..." Arle refuted. "Their death doesn't justify-"

"Feli corrupted Rulue and with her, stole them from me!" Regime!Arle argued.

"And you stole this timeline's freedom!" Arle countered. "It's time to give it back."

Regime!Arle began to do her spells, each an extreme version of her original own empowered by skills and powers from those she lost and received. Doing the Puyo-fist fight, she overpowered her counterpart thanks to her Puyo play being at least on par with her (plus Dark Prince effect of causing the opponent/counterpart to fall extra quick) and the skillswt provided by the likes of Schezo and Rulue. This gave enough time for Carbuncle to heal Schezo and Rulue, allowing the Madou quintet: Arle Nadja, the Dark Prince (Satan), Schezo Wegey, Rulue and Carbuncle, all united against the leader of Rukasazo.

"Damn, your teamwork is... interesting." Regime!Arle fending off the quintet.

A while later, a flash covering the entire Madou during the fight. Regime!Arle is confused.

"Yahoo! Sorry to crash the party, but the fact is: everyone's here!"

"Hydrangea!"/"ハイドレンジア!"/"Blood Cobalt!" Demonic Sig suddenly attack Regime!Arle.

"No! How could you!?" Regime!Arle is shocked.

"Amitie! That... demon?" The quintet noticed.

"We just managed to get into here by ourselves from that upcoming space warp thingy!" Amitie appeared alongside others.

Most of the Puyo users from the main timeline, including those Madou guys (most mooks and all majors) from the main timeline, most of the major inhabitants from Primp (Dapper, Hoho, Otomo and Akuma being exceptions), all of the Science Club members and Ecolo, shown alongside the 7!selves (not including Tetra), the Spacetime Detective Agency of the main timeline, the entire resistance (except that timeline's Ecolo), and even the main timeline's Time Paradise.

"And we didn't go alone either!" Amitie presented.

"E-V-E-R-Y-O-N-E!"

"We've brought everybody here!" 7!Ecolo shouted.

"How can this be!?" Regime!Arle is shocked.

"Now we're talking!" Tee and T-King hi-five.

"Yay!" Mirle approached.

Both timelines' Tetra crew, Mirle, Mipuyo and the Puyo war crew appeared as well.

"We have our mecha taken advantage of to go." Daichi told everyone. "Now we'll pummel this regime sorceress down bad!"

"Everyone's here!"/"全員集合!" 7!Ringo engaged. "Time for the final answer!"

"Let's!"/"レッツ!" The Spacetime Detective shouted.

"Puyo brawl!"/"ぷよっ拳!" The quintet (Arle, Carbuncle, Dark Prince, Schezo, Rulue) shouted.

"I'm screwed..."/"やばいよ..." Regime!Arle loses hope.

Cue the beatdown by everybody Puyo across space-time. Both spells, strikes and Puyo chains, line clears and Mix involved, done to absolutely damage Regime!Arle before she could get any safe chance to even hit back (anymore), let alone shift the tide of battle.

"Owww!!!!!"/"大打撃っ!!!!!" Regime!Arle soon lose blood. "Stop!!!!!"/"やめて!!!!!"

The end result is Regime!Arle being crippled and inert, saddled by loss of blood. "Oh no..."/"ばたんきゅー..."

"Your reign is over." Arle kicks her counterpart to the side and takes her sword.

Regime!Arle bursted herself with a magical aura made of all her magics she got, the original, usual magic mixed with dark arts, divine magic and deep magic, all emanating from her body as a last ditch effort to drive everyone else away. However, the unity of everyone Puyo-in' has their magic overcome this, and allowed Dark Prince to grab Regime!Arle. The sorceress pulsed to try and kill the man again, but Rulue kicked the ruler in her face. Arle restrained her counterpart and electrocuted her, further sending her closer to unconsciousness and thusly, death, and stops at it. Regime!Arle can barely swerve now, and is under arrest.

"You won't terrorize these people any longer." Renegade Ringo watched Arle restraining. "Especially friends like me and our Amitie."

"Fear... is the only thing these people truly understand." Regime!Arle denied. "One day... you'll learn."

Everyone the Puyo dudes surrounded Regime!Arle in disdain at what she has done to her own timeline. Arle confronts her counterpart with intent of saving her from her own rule and despair, but...

"You'll have to... kill me." Regime!Arle told everyone.

"No. Not even you." Amitie refused. "There's been more than enough killing."

And so, Regime!Arle and every single remaining one under Rukasazo dynasty were arrested. Demonic Sig and Regime!Witch has fully wised up now, but decided to be arrested, and they bid farewell to their counterpart. Some groups from the Continuum Exploitation Authority arrived to help fix the timeline, and make sure it doesn't go rogue again. The rest of (surviving) inhabitants of the Rukasazo timeline stays in the timeline, and the titular dynasty is no more.

"All is well that must end well." Modern Sonic the Hedgehog reacts to the timeline in the same starship Cyber-Salde is involved. "I wonder how far the Ecolo timeline has gone through."

Modern Sonic then looks at the bits that remained after Cyber-Salde is out. "Ok, neat. Gotta find Tails and-"

"Sonic. We meet again." Tsukasa Kadoya, Kamen Rider Decade appeared. "It seems like the next stage has already started. I wonder what the leader will..."

"Yeah yeah, that Insurgency, I mean the Puyo one, not DC, that told me about it." Modern Sonic replied.

"Then it seems we're in the same page." Decade responded. "There'll be an attack in Reality Zero. Be there in 10:00 A.M. there."

"Got it!" Modern Sonic took note.

Decade left with the Aurora to venture away. Sonic rushed back to the Rukasazo timeline and tells everyone the Puyo to gear up and get in the new mission.

"Sup, Hal Jordan, the Parallax?" The man in black calling crisis in time.