Attack No Titans...?
"Come on Eren, stop bellyaching and get back to work!" a fellow Scout regiment soldier calls out while cleaning the barrel of a cannon.
"Yeah, yeah..." Eren responds, standing on the edge of the wall and overlooking the vast lands that should have been protected by Wall Maria, at least, before the strange titans changed that.
He shudders slightly at the memory of his mother's death, he'd been helpless and even a trained Garrison soldier fled at the sight of a single titan. No was different though, HE was different. He'd do what Hannes couldn't. He'd show that humanity wouldn't have to hide behind walls, he'd kill all of the titans, and he'd let everyone's dreams come true...
He grips his fists and grins down at the surprisingly titan-clear landscape. "Mankind's counterattack starts now!"
*BOOOOOOOOOOOOOOOM!*
With a bolt of lightning and an explosion announcing its arrival, the Colossal titan towers over the wall, its eyes locked onto Eren with its skinless face seemingly sneering at him.
Eren isn't even able to react properly when he and the rest of the Scouts are launched clear off of the wall by the steam the titan produces. As they fly through the air, all they can do is helplessly watch as it rears back its leg and kicks a huge hole into the Trost gate, creating an entrance for other titans to head through.
"It's happening again... No... No! THE TARGET'S RIGHT IN FRONT OF US! IT'S THE COLOSSAL TITAN! KILL IT!" Eren roars as he expels the gas of his 3D manoeuvre gear, his wires pull taut as he swings and launches himself over the wall, directly at the monstrous titan.
He fires his wires into its face, the hooks attaching to its visible muscle, and allowing him to swing around to try and cut it nape, the weak point of Titans... Only to be blasted away yet again by another bout of steam, the heat of it instantly causing small burns to cover his face and other visible skin.
"S-shit!" he yelps as the Colossal titan swipes its arm across the wall, destroying all of the cannons that'd been positioned there. Eren spins around and tries to make another go at its nape, again it releases its steam, but this time Eren was prepared... He fights through it, but just as he makes his way through the steam... The titan vanishes.
"WHAT!?"
Shocked that the titan could apparently teleport at all, he swings back over to the wall to reunite with his comrades. Once there, he looks over the wall, expecting to see utter carnage as the other titans make their way through and devour everyone in their path...
"Huh... Where are the other titans?" he wonders aloud, in Shiganshina they'd streamed in extremely quickly as if commanded to... Yet now? He looks over the other side of the wall, and doesn't see a single titan in sight. "Just what is happening here!?"
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Elsewhere.
Michael incinerates yet another titan with a bored look on his face. He'd been at it for a while now, just flying around Paradise Island exterminating any titans he comes across. They gave rather good EXP for how weak they were, but Michael just put it up to them having stronger souls and or pieces of Ymir's divinity within them.
He wasn't all that knowledgable about Attack on Titan's lore, but he knew enough to make some guesses. Saeko had gotten bored of fighting titans fairly quickly, and had decided to go explore the walled city to see if there was anything of interest. He knew there wasn't of course, the only supernatural elements in this world were the titans themselves, maybe with the exception of the Ackerman bloodline that granted superhuman-like abilities. Other than that, it was just regular humans with albeit fancy weapons and equipment.
He was sure she'd find the 3D manoeuvre gear interesting enough, maybe she'd take a couple sets for herself if she had the mind... He had noticed her annoyance at Orochimaru's wall-walking ability which drastically reduced her combat effectiveness against him.
Megumin on the other hand? Well, this world was essentially a giant gun range for her, with an almost infinite amount of walking, fighting, targets.
"EEXXXPLOOOOOSSIIIIOOONNN!!!!"
*BOOOOOOOOOOOOOOOOOMMMM!!!*
The spell rocks the earth as a huge fireball consumes a group of titans all in one go.
"Ne, ne, how was that?" Megumin asks as she skips up to him.
"six outta ten."
"Whaaat? That was at least a seven!" she exclaims.
He tilts his head, "You know I destroyed what was essentially an entire planet with an explosion, right?"
...
"S-still, we're not rating it based on you, but based on me!"
"I was... If I was comparing you to me it'd be a one..."
...
While Megumin futilely strikes his shoulder, Michael turns his head and focuses on the horizon... Where a large, hairy titan was approaching.
"Hm, Beast Titan... Stay here, I've got a monkey to dismember." he says, giving Megumin a careless pat on the head before Blinking away.
"O-oi! Wait!..." she looks around the now desolate area and blows a small raspberry while knocking over a nearby stone with her foot.
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Zeke walks towards the explosion in his titan-form with determination, he did not know who or what was doing this, but he knew it must be stopped before everything fell apart... The genocide of the titans and the Eldians within them must be stopped...
The long ears of his titan twitch as he feels pressure on his shoulder... He looks over and spots a strange man there, dressed in robes with red eyes, clipped horns, and dirty-blonde hair that faded to blue at the ends.
"Who-"
*THUD!*
His face implodes as the man punches him, his eyes shooting out of their sockets like cannonballs and his bones crumbling to dust. His titan falls over instantly due to its brain receiving catastrophic damage, with the only real grace being the fact that its neck and nape were still intact, allowing Zeke to survive.