If you were to ask Mikasa on what day had it been when literally everything had gone to shit, she'd have to think about it. Time travel AU. 100 percent AU after season three part 1. Manga spoilers. M for gore and cursing. Mikasa/Eren Annie/Armin

Disclaimer: I do not own Attack on Titan

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If you were to ask Mikasa on what day had it been when literally everything had gone to shit, she'd have to think about it.

Of course, there was the day Shiganshina fell, but after that, there were times when everything was peaceful, like the period where they'd been training for a couple years. She could also say it was when Annie turned titan and killed so many people, including the Levi Squad. Really, the midget had acted like even more of a little shit after that.

No, she'd say it was when they'd went to retake Shiganshina. It had all started with Armin and Erwin. Both had been incredibly injured, and it was certain they were going to die. Levi had the serum that would turn a person into a titan. But he'd made the decision to save Erwin. 'He's just a kid. Erwin is the leader of the Survey Corps. Much more important.' And so, Armin had fucking bled to the death. But Levi's decision had all been for nothing. Erwin had transformed and fucking ate Connie! Mikasa had proceeded to kill the blond titan. They had lost three people they'd valued exceedingly, they'd been through think and thin with in one expedition.

But it didn't end there.

No, while this was happening, Eren had managed the get all of the titan to walk away with the help of Historia. But they'd been ambushed by Bertoldt and Reiner. Mikasa was proud to say that Bertoldt had been exterminated through the combined efforts of Eren, Historia, Hange and Sasha. Reiner made to escape, but then the infamous Beast Titan had appeared. He had beat their asses with Reiner's assistance in apprehending Eren, but then Mikasa and Levi had arrived and she managed to convince Eren to get up. She didn't tell him about Armin. Hange had already been hyperactive and ready for more.

Somehow, they'd managed to drive him and his subordinates out. But not without some life changing information being revealed. The Beast Titan's shifter had come out with a smirk. Mikasa had immediately noticed the striking resemblances he boar when compared to Grisha. Eren had, too. He had almost said 'dad' but caught himself. They all knew the fate of Grisha Yeager. And when Levi had demanded his name with a rather pissed off glare, he had introduced himself. 'Zeke Yeager'. Eren's brother.

So they'd retaken Wall Maria. But not without casualties, as always. Eren had almost transformed when she'd told him. She had to hug him and whisper that everything would be fine for the remainder of the night, though tears streamed down both of their faces as they mourned their lost friend.

And then, when they were receiving medals of 'honour', Sasha had been shot. That made everything even worse.

Things had been quiet for another year, until Hange had finally managed to make a break through. She'd found a weakness -no, a cure- that they could use against the titans. Used against them, they would revert back to their original state as humans. Grinded rose petals and smelted lime stones and haematite mixed together. Something in the concoction affected them, for if it only grazed their skin, they were changing back to humans.

You'd imagine that everything would get better. It hadn't. They'd continued to learn about the history of the Marleyans and the Eldians. They would get attacked more and more. And it didn't matter how many titans they cured. The Marleyans just made more and they were facing famine and in the midst of war, not to mention their ever growing population.

And then, came another attack. The first of their friends to go was Jean, killed by the Pieck, as well as many other mindless titans. Eren and she were on the other side of the wall, battling against Reiner and the Warhammer Titan, as well as many small titans, with the help of many other scouts.

The most shocking death, though, was Levi's. Maybe they shouldn't have been so surprised, he was getting on in age and was in a one vs. many titans and Zeke. Of course, Mikasa had always thought of him as 'the midget' but as she thought back on it, she appreciated him. To an extent. Levi was the only other Ackerman left, too.

He had managed to cut off Zeke's arm and incapacitate his titan when Pieck had arrived. Levi had already been injured greatly, missing his left hand and bleeding profusely in his right temple, but he was just about to push his sword through Zeke's head. The bastard had crept up on him, and just like that, the Jaws Titan had swallowed him whole.

The only good things that came out of this was that they'd killed Reiner but when word had reached their ears that 'Corporeal Levi was dead!', Eren had been after Pieck in a second. The Jaws Titan never saw the light of day afterwards.

For a long time, there was silence. Both sides were healing after their losses. And Mikasa would be the first to admit that they hadn't expected an attack so soon. And in the Queen, no less. Indeed, Historia had been shot in the left shoulder, though she did not go down without a fight. Mikasa was proud to admit that Historia had survived the assassination attempt with little more than a couple scars and a missing eyes.

And then, Hange had the brilliant idea that Eren use his hardening ability to make them a specific weapon. A pickaxe, technically. And when it was finished, she added the cure (known as Götterwaffe) to the tip. Mikasa had watched in astonishment as they used it on Annie's chrysalis. And it worked.

You'd think, after all she'd done, Mikasa would've wanted to kill Annie. But she didn't. For when Eren had angrily spat out that Reiner and Bertoldt were dead, that Marley had killed so many of their soldiers (including Armin, Levi, Connie and many more) by making titans or having done it personally. He had shouted at her everything that they'd done. And Annie almost broke. Except for a flicker of determination in her eye. Anger. She was angry that so many had been killed needlessly. Angry that so many had been tortured. And on that night, they gained Annie as an ally.

Tears filled Mikasa's eyes as she thought of the most recent events. This was where the worst had happened. This ambush took the cake. Annie, Eren, Hange, Historia and Mikasa had all went straight for Zeke. But he had hundreds, literally hundreds, of titans obeying his every whim, as well as the Warhammer with him.

Annie and Eren went for Zeke in their respective titan forms, while Mikasa attacked the Warhammer. Hange and Historia battled against the different titans determinedly. Scouts and titans blood were mixing together, as well as those who had come into contact with the Götterwaffe had been trampled on. And then a thought occurred to Mikasa. They'd never used the cure on a shifter. When she moved in for the attack, she had kept up the appearance that she was going for the foot when she quickly changed direction and went behind the titan, attaching herself to the Warhammer and throwing a volley of the cure at the titan. The effect was immediate as they began to turn human. But Mikasa was still attacked to their hip, and she was pulled down with them.

At the last second, she managed to grapple onto a building, but not without probably breaking her femur, but she didn't care and she was more concerned with Eren. She had probably seen Annie fall. But had been too caught up in her own battle to worry about it.

Now, Eren was battling his brother alone, the rapidly evaporating, headless body of the female titan laying around their feet. She pulled herself to the rooftop and looked for her other two comrades who were still alive. She spotted neither hied nor hair of Historia, but Hange was killing. Without her usual grin. This alerted Mikasa to something being wrong. The mad scientist was always happy when murdering titans.

Her attention was brought back to Eren and she actually screamed. Zeke had turned him around and he had only one arm left, his giant legs and other arm discarded around somewhere. Zeke reached for his nape and gripped Eren's body. Mikasa made a mad dash for Eren. "NOOOOO!!!!"

Eren seemed to realise that there was no way out. So he did the unthinkable. He sent her a smile, mouthing the words 'I love you', before he was engulfed by his brother. Tears streamed down her cheeks as she glared at Zeke. "You bastard!" He merely attempted to swat her away, but Zeke was sluggish from his last fight and the Attack Titan was not yet belonging to him. She screamed loudly and angrily as she moved to cut his nape. Somehow, she accomplished this seemingly impossible feat. "EREN!"

When she spotted Zeke's golden hair, she picked up his battered body by the neck and squeezed roughly. "Give. Him. Back." Zeke only smirked. With an ugly cry, she pushed her sword through his heart, and was satisfied to watch his eyes roll back in his head and the life fade from him.

She panted as everything seemingly ended. And then she was zipping towards the evaporating body of the Beast Titan and walking on the stomach, quickly slicing it open. She ignored her hands burning up and jumped inside, searching for Eren. She didn't find him. Her limbs and face burned with the body.

"NNNOOOOOOOOO!!!!"

Her scream resonated around the surrounding towns. She collapsed to her knees. She knew what Eren wanted. For her to fight. But, she couldn't. Back then, she'd at least had other things to live for. Now, she had literally nothing. So when she felt the body melt away, leaving her burning to death and a titan approaching her, she didn't fight. She accepted death, like Eren had. Now, she could be with him. And her parents and Grisha and Carla. All of their dead friends.

She closed her eyes as the titan raised her to it's mouth, and allowed herself to die.

If only that were the end.