Author's Note: This will be taking place within the Paths.

As the battle between the Survey Corp. and Erwin's Yeagerist organization continued to proceed on top of the wall... Erwin Smith's one goal was to stop Eren and Zeke from contacting each other. He ran toward Eren Yeager as fast as he could toward as fast as he could.

Meanwhile... Zeke Yeager, was currently climbing up the left arm of his bestial Titan, slowly and carefully while trying to reach his half-brother, Eren.

"Hurry!" Eren yelled as he tried to rush Zeke to hurry.

Unbeknownst to Eren and Zeke.. Erwin was rushing toward them at full speed.

Zeke Yeager had made it to the left wrist his left bestial Titan's hand. As he did, he noticed Erwin was running behind Eren. Trying to stop their plan. And also... Zeke's bestial Titan begun evaporating, despite hanging from the outer Shiganshina wall.

Erwin Smith, while running was just a few yards before he can make physical contact with Eren Yeager.

Zeke saw that Eren was about to reach him with his own hand. Zeke made a big leap toward Eren as the bestial Titan hand had evaporated into bones and quickly fallen off the wall. Zeke extended his right arm out as far as he could so he can grab Eren's right arm.

Luckily... Eren had caught Zeke's arm with his own. Making contact for the first time. But what they didn't know... was that Erwin Smith was also there and Erwin had secretly made contact by grabbing Eren's left wrist a second before Zeke could grabbed it.

Suddenly... dozens of different memories of the past wielders of the Attack Titan... Warhammer Titan... and Founding Titan had begun to flodd Eren's mind.

Within the Paths...

Erwin Smith blinked as he stared at a giant white tree of light. 'Wha-where am I?' He looked down at his feet were surrounded by tough sand and then looked up at the sky to see the blue night sky. 'This place... I can't say that I am familiar with it. Everything around me seems to be... calm.' Erwin glanced to his right to see Eren Yeager standing next to him. 'Eren. You made it here, too.'

"Where are we?" Eren had asked.

"This is the Coordinate. Where all the Paths converge. That is my theory."

Both Erwin Smith and Eren Yeager turned their bodies around to see Zeke Yeager sitting on a pile of sand in with a metal collar around his neck and chains attached to the sand.

"This must be where the wielders of the Founding Titan go to when they inherit the powers..." Zeke had assumed.

"Zeke." Eren muttered.

"What the chains around your neck for?" Erwin asked as he pointed at them.

"Oh, these?" Zeke had looked down at his chains. "These chains are what bound those who possesses both royal blood and the Founding Titan. These chains represent the Vow of Pacifism." Zeke said as he grasped one of his chains. "As I had assumed... you two are able to move freely, because you both don't possess royal blood."

"How long have you been sitting there?" Eren asked.

"I've been sitting here for so long, Eren... for you to arrive. I have no idea how time has passed here." Zeke then turned his gaze to Erwin. "But I wasn't expecting you to show up here of all places, Erwin. It must be because you made contact with Eren, before I did."

"I see..." Erwin blinked.

"But, the important thing is..." Zeke then turned his gaze back to Eren. "Eren. You and I now possess the powers of the Founding Titan." Zeke said.

Suddenly, the three Titan Shifting Eldians had begun to hear footsteps from many miles coming from the white tree of light. Both Erwin and Eren turned to see a young Ymir Fritz walking toward them.

"Someone's here." Eren said.

"Don't worry. That's the original Founder of the Titans, Ymir." Zeke said.

"That little girl is Ymir Fritz?" Eren asked.

Erwin Smith's eyebrows furrowed as he stared at Ymir Fritz's body. 'She's the Founder of the Titans?' Erwin then took one step forward toward Ymir Fritz.

"I'm afraid you have no use here. Commander..." Zeke said as he raised his left index finger toward Erwin.

"Hm?" Erwin slightly looked back at Zeke. "Why is that?"

"Because Ymir Fritz would only listen to whoever possesses the Founding Titan. And that is both Eren and I. She won't listen to a common Eldian, such as yourself." Zeke said as he placed his right hand on his heart.

"So, you're saying that I can control Ymir Fritz with the Founding Titan?" Eren asked.

"Yes." Zeke nodded.

Eren turned toward Zeke.

"And now, it is our time to fulfill this long dream that you and I have been pursuing... Do it, Eren. Use the Founder to take away all Eldian's abilities to reproduce and save our world. " Zeke commanded.

Erwin looked to Eren. "Eren. Don't do it. Don't take away all Eldian's freedom by not making them reproduce. This isn't you." Erwin said as he attempted to reason with Zeke.

"Do it, Eren! Save our world! Then, you can use the Rumbling to destroy whatever you please." Zeke had commanded.

"Eren. Think about what you're doing. If you do this, you can never go back to what was." Erwin said.

Eren had taken a moment to think of what he wanted. "Erwin. I have the Founding Titan... so that means, I can do what I want with it. You have no power or say so, here."

Erwinn frowned.

Zeke formed a light smile. "Eren..."

"And Zeke." Eren called.

"Hm?" Zeke paid close attention to Eren.

"Do you really think that I would really euthanize our own people? There's no way that I would follow a ridiculous request like that!" Eren glared at Zeke.

Zeke had gasped in horror. He had been rejected by his own younger half-brother.

"Sorry, Zeke. I was just using you so that I could make it here." Eren said, honestly. Then he begun walking toward Ymir Fritz.

Erwin stared at Eren's backside.

Zeke then begun to weep in his hands. "The Eldian people will continue to live in hell as long as we keep producing generations of Eldians! The cycle will never end! Why won't you end it? Answer me!"

"Why? Because, I was born in this world." Eren had answered.

Erwin Smith had watched closely as Eren approached Ymir Fritz.

"Ymir Fritz. Grant me the full power of the Founding Titan!" Eren screamed as he offered his hand out to Ymir.

Suddenly... Ymir Fritz walked pass Eren and completely ignored him.

"Huh?" Eren gasped.

Erwin's eyes had shrunken a centimeter as he had begun to understand what was going on. 'So, that's it...'

Zeke Yeager, who seemed to be weeping had begun talking inside a normal voice. "I had a hunch that you wouldn't be completely honest with me. Part of me thought you of all people, would understand your only family you have left. Did our father really screw up your mind?"

Ymir Fritz walked toward Zeke Yeager and begun digging her hands in the sand.

"What?" Eren asked.

"In the span it took for you to wake up... I learned that the Founder could make many things. Even these Earthened chains around my neck." Zeke stood up and broke off the chains around his neck. "So as long as I have royal blood... I can always control the Founder. But unlike all the previous wielders who possessed royal blood-along with the Founder... I managed to arrive without the Vow of Pacifism tainting my mind. As much time that I have spent here with Ymir Fritz... I know how to nullify the Vow to Renounce War." Zeke said all while knocking the sand off his bare shoulders.

Erwin's eyes narrowed as he listened to Zeke's speech.

"It is true that Ymir Fritz possess immense power. But in reality, she is just a slave with no free will of her own. She will easily submit to anyone with royal blood. In other words... I've gained full control of the Founding Titan." Zeke explained.

"No. You can't..." Erwin said.

"Erwin Smith." Zeke then pointed at Erwin.

"Eh?" Erwin Smith suddenly felt something cold and hard around his wrists, so he then looked down at his wrists and discovered metal chains around his wrists.

"Ever since I met you, that day... I've always considered you to be a big threat to my cause-now that you're here in the Coordinate. And another thing. I was really surprised that you survived that fight and ate Bertoldt. But I guess that's fate for ya."

Erwin continued staring at Zeke. He wasn't angry at all.

Zeke then turned to see Eren. "And you... Eren." Zeke raised his right index finger toward Eren.

"Ah?" Eren looked down at his wrists to see himself cuffed by cold metal chains.

"You were nothing more than a key to open the door of success. I'm happy that I've waited so long to hear your honest answer. Clearly, you're still under the influence of our cursed father." Zeke as he approached Eren. "It isn't your fault. That cursed father of ours bringing his sons into a harsh cruel world, such as this... and treating us both as tools. Don't worry, Eren. I have another father who saved me. Don't worry, Eren. I will not abandon you. I will protect you, because that is what older siblings do. And also, I'm going to fix you with the Founder." Zeke while clasping Eren's shoulders.

"Stop! There's no point in trying to fix me!" Eren detested Zeke trying to help him in Zeke's own way.

"Don't worry. Once I euthanize all Eldians, I will be with you. Always." Zeke then pressed his forehead toward Eren's. Both Zeke and Eren were now entering Grisha Yeager's memories.

As this is happening... a chained Erwin Smith was left Ymir Fritz who seemed to be walking and ignoring the people around her. As he stared, at Ymir Fritz... he couldn't help but think of the events that occurred in his life. From the moment when he asked his father a simple question in class. "Teacher... how do we know that there aren't people living outside the walls?" To the current situation happening on Paradis Island. Erwin slowly closed his eyes for a moment to think of how he was going to escape the situation he was in.

"Promise me."

Erwin suddenly opened his eyes again as those two words played in her mind. And he knew who's voice it was. 'Lara?' Erwin then thought of Lara Tyber, sister of Willy Tyber and the Warhammer Titan. He couldn't see her, but he imagined her voice. Then, he imagined Lara Tyber standing next to Ymir Fritz.

"Promise me."

Erwin Smith had imagined Lara Tyber saying that again. 'That's right. I made a promise! A promise to Lara Tybur... And I intend to keep that!' Erwin Smith then gritted his teeth and attempted to break free from the cold hard chains from the wrists. He put all of his strength into his arms he attempted to break free his will was strong and the fire within his eyes burned once more. "OOOOOAAAAAAAGGGHHH!" Erwin Smith let out a roar as he put all his strength in his arms. Suddenly, the chains on Erwin's wrists had suddenly snapped off. And when they did, Erwin had automatically run toward Ymir Fritz. And within ten seconds, Erwin had made physical contact with Ymir Fritz by grabbing her by the shoulder... "I'M GOING TO SAVE THIS WORLD! PLEASE, YMIR! HELP ME PUT AN END TO THE TITAN CURSE!" Erwin roared.