For the first time in a long time, [Y/n] recalled what happened on the day she arrived in this world. Specifically, how much fear she felt when she saw those things; the titans. And as her memory serves correctly, it started exactly the same as this. The colossal titan kicked a hole into the wall that day too, where titans had entered and began slaughtering humanity rather quickly. Now, as she was on the wall by her gear she could see history repeating itself except she was much closer to the danger now than she was then. Fear had filled her being that she was paralyzed with it.
"[Y/n] snap out of it!" Eren shouted at her, watching her turn her head slowly to face him; unlike hers, his was filled with anger, determination and hatred towards the things that took his mother away from him many years ago. "This is it! Take out the colossal titan! This is our chance!" He shouted as the others looked at him, snapping out of their fearful daze; Eren ran along the wall intending to take down the 60 meter titan. "Don't let it slip away!" [Y/n] pushed herself to run as well following him, unsheathing her blades as well. The blood lust he gave off was so strong, it nearly scared her as much as the titan did. But the reminder that she needed to survive to get back to her home helped her focus. But reality was still there of their current situation. 'We're going to need a miracle if I want to get home in one piece and alive.'
The titan swung its large arm along the top of the wall, two soldiers having to jump off to avoid it and hook their gear onto its shoulders so they would be able to swing down to cut deeply into its neck from behind. While in the air, both noted that it had knocked the cannons out on purpose as if it planned on it since the beginning. "Eren, now!" both pulled themselves in to strike, instead of their desired results they were pushed back by the steam it gave off making an effective cover for it as well. 'It has intelligence!' when it cleared, it was gone as if it was never there. "Damn it." [Y/n] hissed as they went back to the wall. "It vanished... Exactly like five years ago..." Eren grunted as he surveyed the area taking note of the breech. There really isn't enough time to cover it nor is there technology available to actually do the task. When the two made it back to the top again and met with their teammates, there was not much time to discuss what happened. They were given orders to go to Headquarters as the protocol for such event came into effect.
Cadets were each assigned to different areas but right now they were currently setting up their gear. While Eren, Mikasa and Armin were together; [Y/n] was physically ready but trying to mentally prepare herself for what may happen. Including the fact that she might die in this universe and would not likely see her home again. But, she thought, if she does die she hopes that it gives some of the inhabitants a fighting chance at least. As she closed her eyes to gather her thoughts, her mind going to her classmates in Class E. She remembers all of their attempts to assassinate their teacher, all the crazy situations that they got in, the training they had from Karasuma and Vitch sensei. Determined to survive she focused her thoughts and went outside to find out where she would be assigned in the four squadrans.
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"Eren. If things start to take a turn for the worst I want you to come find me, alright?" Mikasa told Eren when they had gone outside, a [s/c] female listened as she quietly walked over to wish them luck. She was assigned to message relay since she was able to move fast enough to do so compared to others. "We're in completely different squads." He frowned, not liking where this was going. "Look, this is going to get ugly and when it does that means the plan goes out the window. Come and find me so I can protect you." [Y/n] didn't seem to like the sound of this either, "I know it's not my place but if you're in different squads he won't be able to find you in the first place without being in the danger you want to keep him from." "If you know it's not your place then butt out." Mikasa snapped at her, freezing when she saw the look in those [e/c] eyes. "Who the hell do you think you are?" Eren shot back to her, surprising the two females until the three were interrupted by another officer. "Ackerman, you're with me. You've been assigned to the rear guard on special orders. Let's get moving." The black haired female froze in panic, now it was confirmed that she would be far from Eren to protect him. "B-but sir, I'm just a cadet! I'll slow everyone down!" she protested, "Don't you dare use that damn excuse at this time." [Y/n] muttered knowing she could hear her. "You're not being asked for a self evaluation here. We need every elite soldier we can get." he stared her down as she tried find another reason. "What about [L/n]?" She tried to volunteer her instead, as much as she liked the girl she didn't want to be separated from Eren. "Excuse me?! As much as I would love to switch places." [Y/n] laced her words with heavy sarcasm, "I'm assigned to message relay. Out of our class I haven't been outran yet especially when out of gas." she was not going to forgive or forget what she tried to do. When she tried to come up with another excuse, Eren had enough and headbutted her.
"You've been given a direct order, pull yourself together now." he was fed up with her overprotectiveness in this situation. While any other time he wouldn't have been as rough but now that their lives were in danger, there was no time for him to be considerate. "This is bigger than us and you know it. We're on the verge of extinction here, have some damn perspective." She reluctantly nodded and looked at the ground, "You're right, I'm sorry this whole situation has me out of my head. Just promise me that you won't get yourself killed." Mikasa then turned to look at [Y/n]. "I-" "Save it." [Y/n] interrupted, "I'm not accepting your apology any time soon for that. You'll have to do that another time. For now, I'll give you both a little motivation; if we survive this when this is over I'll tell you about where I came from." as much as she would've liked to have avoided it there wasn't much they could do now. "You're choosing now to use that?" Eren sighed a little and gave a small smile. "Yep. So you better survive this or you won't know." she waved before having to leave to get to her post.
Along the way there, she ran into Marco and Jean; both of them on their way to their own assigned areas. "Don't die out there." [Y/n] told them, really hoping that their fates would not be a grim one. "I can say the same to you pipsqueak." Jean smirked and patted her head, ruffling their hair despite their protest. "But really [Y/n] be careful," Marco looked at them with worry; "We don't want anything to happen to you, you've been a good friend to us over the years." instead of meeting her eyes they instead met the ground. "Then I guess I'll give this motivator to you and the rest of our class." she sighed earning confused looks, "You can pass it on to the rest of our class if you can; if we survive this and it's all over I'll tell you guys about my home." Jean looked rather annoyed at the news, "Instead of telling us during training, you chose now to do this?" "Never felt the need to motivate you with this kind of information until now aside from remaining as the 'mystery' girl of our class." She shrugged, "Anyways, pass it on okay!" she ran off to get to her post and with her tanks full and her abilities she hoped she'd be able to fight to survive this titan attack.
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Extra before going to HQ: After being given orders; Sasha quickly looked around for the box she had placed the meat in. And she had enlisted the help of [Y/n] and Connie despite them protesting. Finding it was not a priority given what was going on right now but for her, food was always a priority no matter the situation. Finally, the two had enough searching and dragged her down so they could get to headquarters but along the way something caught [Y/n]'s eye. "Um Sasha?" she found the box and the meat. But the box was broken and as for the meat? It was trampled on and run over by many things. It was no longer edible. The sight was enough to make Sasha scream for the loss of her precious meat that she had stolen.
Else where, a certain person felt a shiver go down their spine as if they did something awful to something precious. And now that they remembered what they knew being hidden on that structure and who it mostly affected, made their sins crawl on their back.
Thought we could use a little laughter with all this death coming up haha yeah; I'm an awful person. And warning: With the sadness going to come up next; I will likely update to really tear emotions apart as much as I can. Anyway if you're confused about the meat part please reread the previous chapter as it has been updated and longer. Thank you!~ KtCD

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Attack on Assassination Classroom x reader
FanfictionLike the title says this is a crossover of AOT and Assassination Classroom; while reader and your classmates were trying to assassinate Koro-sensei despite the large gap in abilities, during one of the government's attempts something went wrong and...