Spoilers from included and/or represented works abound. Please read this fiction carefully.
Bayonetta ω, no..., Cereza opens her eyes. Turns out, the Left Eye of Darkness is there, the other is originally Singularity. She then reveals in her right arm an eyeball... not ordinary, but the Right Eye of Light.
"I took this body and the Eyes of the Worlds for my use, and the Light is specifically for this body's father." Cereza told everyone. "Inferno will soon be conquered. Paradiso is next."
"Damn no!" Mario and Luigi and Sonics then ran away from the possessed Umbran Witch.
"Who should I kill next?" (Singularity as) Cereza smugly.
"By fully restoring the Infinite Earths, a door was open to a hypertime loop that turns into paradoxes once broken by Pariah realizing the loop itself, and altered his tactics." The Anti-Life girl narrating. "This allowed Pariah to avoid his demise and destroyed the multiverses and fed that to his own world, which then caused a chain reaction that founded the Order of the Pariah, that will seize all existence and make all submit!"
"I can hear it with my mind." Modern Sonic surprisingly heard it. "I'm finally sensing someone's... narrating. I'm breaking the fourth wall subconsciously."
"What!? Your awareness... No..." The girl is shocked.
"All thanks to Faketrix from Fanfictasia that I learned one and half a week ago." Modern Sonic smugly replied. "I just finished the course very recently, and it helped-"
"You! You listened too far of a narrative! You are disrespecting the Order of the Pariah!" The girl scolded. "Mister Arc, shoot that hedgehog!"
Cereza simply shoot once to modern Sonic, knocking a lot of rings. Modern Sonic lost those, so he got up and retrieved a few.
"Good thing I got rings." Modern Sonic smugly responded. "My classic dude can pull it off with a bunch of rings too."
"You!" Cereza angrily ambushes.
She and modern got in a fight, where the hedgehog went against the Umbra Witch possessed by the (new) Artifical Tyrant. This reminds of fights from Smash Bros. but with Sonic having new way to fight and boost off, having adventured in Starfalls Islands once. The fight also gave the plumber brothers and classic Sonic to take out a Portal Device.
"Yes! Now we can leave!" Modern Sonic then smashed Cereza off the ground. "Use it!"
Mario activates the device, and created a rift. He and his brother entered, followed by classic Sonic. Modern one looked and entered, but Cereza pulled off the same projection trick Singularity uses.
The projection failed to reach the rift in time; the rift closed, four has escaped.
"They got away..." Cereza is disappointed. "I hope they don't call Miles Prowler or any of his variants for help. He's annoyingly intelligent."
"At least this city is done for." Cereza looked around. "All alternative verses shall be conquered. Only then, I can find this body's father."
Cue the montage of Cereza devastating variants' worlds with her newfound (technically his own) powers. This meant the destruction of the very World of Chaos came quick; also a multiversal destruction made simple. In a just a few hour, the Human World is utterly snuffed out, leaving behind the energy which now are seized by Arc in Cereza's body. Even the Dark Eve, the now-warped consciousness of Bayonetta of Alphaverse, was absorbed to Cereza to bolster the power even further.
Meanwhile, in the Ithavoll Tower now floating in Paradiso...
"What's the..." A Lumen woke up.
He looked around, found himself in Paradiso. However, he thought he should be dead by now, that his...
"I should be dead. How the heavens did I..."
The Lumen got up, and squinted. He saw Paradiso got purple lightning for some reason. Otherwise unbeknownst to him, it's Cereza possessed by Singularity, who wreaks havoc upon the World of Chaos. He vaguely recognized the lightning to be of Cereza's doing.
"Cereza... My dear daughter..."
Yes, his name is Balder. He's the last Lumen Sage. And even stranger, he somehow knew the Right Eye of Light coming, even though it should be no more as Balder has died.
"What? The Right Eye... it's returned... No! What's this? That doesn't make sense-"
Motley and Chimi teleported right in front of the Lumen.
"So, you're the Lumen Sage, Balder?" Chimi asked. "Husband of Rosa of Umbra, father of one-"
"How did you know?" Balder freaks out. "How in the light-"
"It seems that you have been rifted upon your existence, and thus came back." Chimi explained. "This explains why the tower is also here as well."
"That tower! I knew it." Balder took his glaive. "What do you want from me?"
"Mr. Balder, for some reason, we'd like to explain everything that leads to this moment." Motley suggested. "So, let's get straight..."
Motley monologues about the Order of the Oscar and the war of Fanfictasia (from the bad future which they came from), briefly explained what is Fanfictasia, as well as the story behind the Order of the Pariah and the current plans that's going on.
"That was long. And very complicated." Balder is surprised.
"So you know." Motley concurred. "Where's the way to the perfect timeline, where Oscar thrived and 'Villains' are MVPs most of the time, less likely be slaughtered by 'Heroes'?"
"Firstly, I do not know that Oscar man in gold you were talking about." Balder refused. "And secondly, I don't know anything about that way."
"Heh, so you have no idea beside what we explained to you just now." Chimi responded.
Motley and Chimi teleported away.
"I barely know those now. Just when it can't get weirder..." Balder facepalmed. "Cereza, the Witch... I'm waiting for you to see me now."
And sure enough, Cereza showed up mid-air, though as she's possessed by Singularity, she's mixed with Homuculus traits. She's holding the Right Eye, and she promptly threw it to Balder.
"Cereza!" Balder takes the Right Eye, and inserted it to his. "Thank you. I've been waiting for-"
Cereza blitzed to Balder, and choked him out.
"Hello, Father. Look at my new powers." Cereza suggested. "Oh wait, I already showed you a little bit of it. Besides, the Eyes of the World is back, we can shift and rule together!"
"Daughter... what's... gotten... to... you..." Balder horrified at Cereza's new bout, even the Homuculus eye of Singularity on the right eye side creeps him out.
"The darkness isn't the corruption in us." Cereza told Balder. "We're the corruption in it."
"Also, that Aesir is no more. We can keep feasting with the Eyes. All is back, and-"
Balder knocks Cereza off with the glaive.
"Oh no, Cereza, looks like we've completely switched our moral this time around." Balder is disappointed in what Cereza has become. "Last time, I wasn't myself, Loptr made me evil. This time, someone made you evil!"
"Yeah, yeah, the power of the Homunculi... Singularity hones the power of Chaos, and I gladly took it." Cereza revealed. "Now, combine both that with the Left Eye... I only have you as my remaining-"
"Shut up, daughter! I'll save you!" Balder charged ahead.
...only for his daughter to knock him out of the tower, using the guns made for her.
"Go, Perlucidus." Cereza (actually by Arc) summoned a Perlucidus, which then flew and attached directly to Balder's spine.
Unsurprisingly, it's followed by Balder screaming in agony.
"Easy, Father. Have you lost control of yourself?" Cereza asked. "No wonder it's so surprisingly easy to ensnare you for my very use."
"What... are... you..." Balder getting stung out.
"The one who will show you your true potential." Cereza smugly replied.
Balder briefly lost control of his body as his back sprouted Homunculi's characteristic light tether, and got controlled. And then he woke. His left eye glowed cyan, but the Right Eye remained the same.
"Now, my daughter, Arch-Eve Omega." Balder into the cold blood he never got since his attempt at purging the world as by Loptr's evil. "What if anything can I do to help you?"
"Oh no..." An infernal soul heard it. "This is... insane. Cerezita has..."
"Oh? It's Jeanne, a fellow Umbra Witch. She escaped because I broke Inferno?" Cereza noticed. "Father, looks like we have a witch hunt incoming. This soul must he captured."
"Oh shit!" Jeanne realized.
Cue Jeanne (or rather, her soul) chased by Cereza and Balder. This chase starts from across Paradiso, with Jeanne avoiding angels in the way, and the possessed father-daughter duo slaying them. Jeanne then took the risk and dives down to the remains of Chaos, which happened to have two open rifts. She went for the much closer one, but it's closed prematurely for some reason, just barely before Jeanne could enter it.
"No! Damn it! That was a way out!" Jeanne is frustrated. "Let's go to the other way!"
Jeanne turned back towards the farther rift, which is opposite to the one just closed. Unfortunately, Cereza and Balder caught up.
"Hello, Jeanne, we must catch you." Balder told Jeanne. "Light catch you!" *rushes*
Cereza also ran towards, but Jeanne, being an Umbra Witch, was able to dodge them both beautifully. The soul then flew straight to the rift.
"No! Don't let that soul get away!"
Both chased Jeanne to the rift, and all entered the rift. The Rift close, leaving the Trinity of Realities abandoned, and almost no living creatures left.
Jeanne went through a dozen worlds just to get away, and as she finally did it, she fell into Teyvat, which was overrun by the Anti-Life.
"What the!?" Jeanne is shocked.
She's in Liyue Harbor, post-Lantern Rite. However, all the people seems apathetic. That's because they are all corrupted by the Anti-Life Equation.
"What is all this!?" Jeanne wanders around Liyue for a while, and found everyone there... unusually apathetic, even for the case of a ghost from another world wandering around. "Oh well", she said.
Nobody noticed her.
"Not very surprising, I'm now a ghost." Jeanne commented.
While walking on Guili Plains, she finally found something interesting... and dangerous. She found an active Cube, corrupting a large area.
"What is this? Hmmm... Very interesting."
Jeanne touches the cube, and got zapped. This also briefly made the soul visible to humans, allowing nearby Liyue to spot her.
"Look! A ghost is messing with us!"
Not long afterwards, the Millieliths arrived, and tried to catch Jeanne. The Umbra Witch maneuvered out of the way, and suddenly transformed into a swarm of moths flying around. Jeanne was able to escape, and then settled in Dihua Marsh, where chunks of lands are now abducted by the Last Reality. She found a sleeping E-123, a robot, and hid into it.
A few hours later...
-*yawns* "Seems like I... wait." Jeanne got up. "What the..."
Turns out Jeanne is now inside E-123, accidentally assimilating the codes. "What!?"
E-123 freaks out, rushing around, blowing the cover and allowing the Millieliths to notice. E-123 used its machine gun to slaughter all those corrupted soldiers.
"What? It's... surprisingly powerful." Jeanne thought.
It fired a laser cannon, prompted by her, to finish off the last ones. And of course, it got an improvised variation of the Bullet Art style Jeanne is used to.
"I got rapid-firerotary cannons, flamethrowers, missile launchers,fireball launchers,semi-automatic single-barreled wrist cannons for firing pellets,homing lasers, miniguns, a double-barreled laser gun that extends from this forearm, drill-shaped missiles, and laser beam cannons that can firedestructive lasersacross a wide area." Jeanne recapped. "This robot can even retract its hands into their sockets for scooping up some things intoballsand either use them as melee weapons orlaunch them as fireballs."
Jeanne also found out that E-123 can fly using jet boosters. She was able to replicate her own Bullet Art as well.
"Madame Styx? It's still here, now inside the arsenal?" Jeanne flew away and chuckles. "Glad I can use that demon again!"
Now that she is to get used with the robot as her new body, she got away and used a random sideways rift to fully escape.
That evening...
"Mummy is possessed by Singularity... Fuck!" Viola is frustrated.
"Uh oh, no!" Hoshimatsu is disappointed.
"I even saw Bayonetta emerging out of nowhere, then fought me just because I broke the fourth wall thanks to Faketrix session." Modern Sonic explained. "I had to fight to add time for escape."
"Finally, we found Omega! E-123!" Shadow the Hedgehog (not the prime one trapped in Shatterspace) arrived with E-123/Jeanne. "However, it is acting strange."
"Finally, you kitty!" Jeanne spotted Viola.
"Jeanne?" Viola recognized Jeanne through hearing the voice.
"I am back, and is in a robotic body. Not bad, because it's powerful on its own and can even handle my style and power surprisingly well." Jeanne explained. "I watched that Balder man getting controlled by... Cereza."
"Mummy... what? She..." Viola shook off. "She... did..."
"I could tell right away that it was Singularity possessing Cereza, based on the act." Jeanne continued. "I got wise, having remembered being literally backstabbed by that tyrant. I was a ghost coming out of Inferno and got sense back, but still."
"No no no, NO!" Viola vents the way. "The same man who ruined a student council president's life across realities has took Mummy!"
"There's other me who can't stay outside of the so-called Shatterspace for more than a moment." Shadow mentions his (prime) counterpart. "As for Omega..."
"Madame Styx too." Jeanne suggested. "Anyways, what up?"
"The Order of the Pariah is behind all this, starting with the evolution of the Anti-Life Equation." Viola revealed. "They were founded because Pariah ended up knowing the hypertime loop later on throughout the hypertime, so he adjusted his tactics and managed to emerge victorius and doomed all of his reality other than the world he originally belonged."
"Who's the Pariah?" Jeanne has no idea of who at all.
Cue the lengthy explanation about Kell Mossa, his misadventures and eventual insanity, that all busted the Infinite Earths.
To be continued...