Outside of the Shiganshina Wall...

Adult Eren Yeager and Frieda Reiss had snook passed the Shiganshina walls and were dressed as Garrison soldiers with both their long hair tied into buns. Eren wore the Vertical Maneuvering Gear around his waist, while Frieda didn't. They were waiting for the Warrior Unit to arrive. There were no titans around on the plain field, the sun had begun to set, slowly.

Cicadas begun buzzing in a nearby tree.

'So, this is what it's like to be outside the walls.' Frieda thought, as she looked back at fifty-meter wall, then downwards at the plain grass field around the two of them. 'It looks very pretty, outside.' There were two trees that Frieda had spotted.

"They should be coming at any moment, now. I know it." Eren said, looking straight ahead. Twelve O' clock.

"Eren. I'm going to be honest with you. I'm feeling a little nervous about this." Frieda's legs begun shaking a bit and she tug on Eren's sleeve.

"I wouldn't blame you, Frieda. But remember. The lives and futures of everyone in the walls depend on us." Eren placed a hand, gently on one of Frieda's shoulders.

"I know... but, what if I fail?" Frieda looked down at Eren's legs with doubt. "What if I hesitate to stop them from transforming and killing people? Then, you traveling from the future-and meeting your mother and father again would've all been for nothing..." She worried.

Eren used his left hand and lifted Frieda's chin up to his level. "Hey. That's not going to happen."

"But how are you certain?" Frieda asked.

"Listen. I made a promise to myself that I would protect you, my mom, my dad, Mikasa and every other Eldian living on Paradis Island from the outside world-whether they're good or bad." Eren made eye contact with Frieda.

"But what about the Eldians that are living in Marley?" Frieda asked.

Eren paused.

"Eren?"

Suddenly in the distance, Eren's ears heard the sound of large footsteps coming their direction from many kilometers away. "They're here." Eren said, as he used his eyes to spot the Armored Titan from many kilometers ahead.

Frieda looked towards Eren's direction and spotted a bulky Titan with silver hair and golden armor on its flesh running towards their direction. "What is that?"

"It's Reiner." Eren answered, recognizing the Armored Titan. He remembered the times that they had fought as Titans. He then glanced passed Reiner's Armored Titan and saw a few dozen Pure Titans running behind the Warrior Unit at high speeds. "And it looks like he brought friends with him."

Frieda gasped after glancing behind Reiner, kilometers away to see a number of Titans running behind him. "Are they..."

"Eldians from Marley, who were all sent to Paradis as Pure Titans. Yeah." Eren answered, then thought of Dina Yeager as a Pure Titan. 'She must be there, as well.'

"Mmph!" Frieda held Eren's hand, tightly.

"Get ready." Eren said.

Frieda remained silent, then begun to activate her Founding Titan powers. Her light blue eyes slowly begun to glow.

Reiner Braun, whom had decided to carry on the mission to claim the Founding Titan-despite Marcel's death... Reiner had transformed into the Armored Titan was running towards the walls, leading a large number of Pure Titans. He carried a young Bertoldt Hoover and a young and exhausted Annie Leonhardt, whom transformed into the Female Titan less than an hour prior. He shielded them both with his arms, so the Pure Titans couldn't get to them.

'There are more Titans than we expected. We need to hurry and get to-' Reiner's thought process was interrupted as he then spotted two people standing in front of the Shiganshina gate. He spotted both Eren Yaeger and Frieda Reiss facing them while running. 'Wait... There are people outside the walls? Who are they?' A young Reiner then grunted. 'They must be the opposing forces of Paradis!' Reiner assumed that Eren and Frieda came to stop them and started running a bit faster. 'Get out of my wa-' Suddenly, Reiner and Bertoldt felt electricity shoot through their minds, as they felt the Coordinate activate. 'Ah?'

'What?' Bertoldt thought.

Eren then flashed his green eyes, conjuring large spikey pillars from the ground.

'What?' Reiner stopped running to see spiky pillars appear before him. He then tried to turn around, only for spiky pillars to appear in front of his face. 'What the hell is going on?' Reiner thought as he looked around and realized he was trapped inside a cage made of Titan flesh. It was small enough to trap the Armored Titan and prevent his Titan arms from moving around. His Titan arms was stuck crossed over his chest, shielding Bertoldt and Annie. He moved his head and looked towards the walls and spotted Eren and Frieda, not knowing who they were. 'Did they do this?'

Eren stared at Reiner inside a structural cage from yards away. 'Reiner's too busy trying to protect Bertoldt and Annie. Which means, he can't use his hands to break free from the cage. That should by us more than enough time to catch them before they touch the wall.' Eren thought to himself.

"Tch!" Reiner grunted. 'I can't get out of this cage! It's too small! But, if I don't escape with Bertoldt and Annie, soon. The Titans will-huh?' Reiner paused as he suddenly noticed the Pure Titans chasing behind them had suddenly stopped in place, standing side-by-side. 'The Titans... had stopped?' Reiner gasped, then looked towards the wall, where Eren and Frieda were standing. 'Wait a second... The Titans were chasing us for a while. And by the time we arrive, now they suddenly stopped and are standing side-by-side. Only two people are here, standing outside the walls, staring at us.' He stared at the couple for a moment, then a thought had hit him. 'No way, it can't be... that spark I felt just now...' Reiner's eyes widened a bit. 'It has to be it. One of them possesses the Coordinate!' Reiner assumed. 'I have to capture them! But I can't move without hurting Bertoldt and Annie.' Reiner looked down at his Titan body, acknowledging that he's been immobilized.

As Reiner lightly struggled, Eren took this time to run towards the Warrior Unit at tops speed, while carrying Frieda on his back, piggyback style. Her legs were on Eren's sides and her arms wrapped around Eren's neck.

"Hang on, Frieda!" Eren told Frieda while running.

"O-okay!" Frieda nodded, as she wrapped her arms around his neck, tightly.

Eren then used his maneuvering gear and hooked onto one of the spiky pillars he created and ziplined towards it, pulling himself and Frieda towards the Warrior Unit. They landed on a nearby spiky pillar, landing near the Armored Titan's face.

Reiner gasped. 'What are they doing?' He thought, as he stared at Eren and Frieda, who hooked onto the spiky pillar constructed from Titan flesh. 'They're trying to stop us from completing our mission!' Reiner gritted his teeth in frustration. 'I won't let you stop us, even though you're the Founding Titan!'

Eren grunted as he saw Reiner open his mouth and noticed that he was going to scream. He then changed plans, by biting his right hand.

Reiner gasped as he saw Eren attempt to bite his hand, thinking that Eren was gonna transform here and now. 'He's going to transform?'

Eren then switched tactics, moving his hand away from his mouth. Making Reiner think that he was going to bite it. "Let's go, Frieda!"

Frieda then made a long jump towards the Armored Titan's forehead with a determined face.

Reiner gasped as he saw Frieda jump forward to him. He wished he could move his Titan arms, but they were stuck over his chest. 'No! Wait! I don't want-' Before Reiner could finish his thought, Frieda had already made contact with the Armored Titan's forehead. Her eyes had shined bright, already activating the coordinate. Reiner could feel the Founder's power coursing through his Armored Titan flesh. The next thing he knew, his eyes had gotten a lot heavier. 'Don't... eat... me' Reiner silently begged, as he drowsed into a deep sleep. The Armored Titan's face suddenly dropped, as Reiner fell to sleep.

'I'm Sorry. But I can't let you hurt anyone in the walls...' Frieda thought as she hung onto the Armored Titan's short silver hair.

"I got you, Frieda." Eren said as he landed on the Armored Titan's collar bone.

Frieda saw Eren reaching towards her. She let go of the Armored Titan's silver hair and fell into Eren's arms. "Thanks for catching me. The Armored Titan's asleep." Frieda smiled.

Eren looked at the Armored Titan's hands. "And what about..."

"They're all asleep." They both looked to see Annie and Bertoldt sleeping under the Armored Titan's hands. "I was able to put the other warriors to sleep as well, because they made physical contact through the Armored. Since the Armored one was shielding them." Frieda said to Eren.

"That's perfect." Eren looked over at the walls of Shiganshina. "Everyone is safe, now."


Meanwhile...

Within Shiganshina, three young adolescent children named Eren Yeager, Mikasa Ackerman and Armin Arlert were sitting by Shiganshina river.

"I believe that people who live in the walls have their hopes too high-assuming that the walls will be safe for another century. Just because, the walls hadn't been breached for over a hundred years-doesn't mean that it won't be breached, today. It's only a matter of time." Armin said as he looked at his own watery reflection.


Meanwhile...

Frieda teared up and hugged Eren relief. "I'm very happy, Eren!"

Eren hugged Frieda back, wrapping his arms around her hips. "I'm very happy, too."

They both stopped hugging for a bit as they heard Bertoldt's loud snoring. Eren had a normal expression on his face while Frieda chuckled, as she found him snoring funny.

"Um, what are we going to do with them?" Frieda asked Eren.

Eren paused and stared at both the sleeping Titan-Shifters, Bertoldt and Annie. His mind suddenly took a trip down memory lane. As it was filled with negative memories of the Warrior Unit, as he remembered all the times that they had kidnapped him and took countless lives just to retrieve the Coordinate.

He first looked down at Bertoldt Hoover, first, remembering when he had breached both Shiganshina District and Trost District. Taking hundreds-if not, thousands of lives, indirectly by letting Titans kill innocent people. Including his own mother, Carla. Then, he thought back during the time when he had defeated Bertoldt and had him devoured by Armin.

Then, Eren looked over at Annie Leonhardt, remembering her murdering countless Survey Corps. members, including Squad Levi in the Titan Forest. Then the incident within Stohess District.

And last but not least, then looked over at the Armored Titan's face, directly at Reiner Braun. He knew that breaching the walls in his timeline was his own fault, all because he wanted to bring honor to his homeland, Marley. He remembered seeing Reiner breach Wall Maria, then remembered all the fights they had with one another. He remembered wanting to see the die slowly but changed his mind as he realized they have the same objective.

"Eren?"

Eren sighed, calmingly. "I think I know what to do with them, now."