Keep in mind, this story took a lot of inspiration from other fanfics, so I will be using some of their characters and ideas. Just a warning so you don't think I'm just copying a bunch of other fics. I'm merely taking ideas from those fics, and twisting them from their original roles. For example, Yukio. I'm changing his role a bit as you'll see later.
Italic = Thoughts
There, alone in the sandstorm, was the lone survivor of night raid. Akame. She had been wandering the world for weeks, searching for her next target. Although, no amount of death and murder could fill the emptiness in her heart. The deaths of all her teammates, with the exception of boss. She longed for a way to fix things, a second chance. But she knows that was impossible, or was it?
Akame: What is this?
she stared at the temple in front of her, at least it looked like a temple.
she opened the door ... and was met with a tribe of sand raiders.
Raider: hey, what's a girl doin here?
Other raider: I don't know, but I say we have some fun with her!
They charged her, guns blazing, so she unsheathed her sword, blood red eyes unwavering.
Akame: Eliminate
She cut them down with her emotionless gaze, wanting to focus on the secret of the temple. Once she made her way to the next room, she spotted a capsule for suspended animation. At least, that's what it said on the label.
Akame: Suspended animation?
She pressed the button labeled "open", and the capsule released a cloud of smoke. While it was difficult to see, she could make out a figure stepping out of the capsule. Around her age.
?: Hello. May I have your name and gender please?
Akame: gender? Well whatever. Akame. Female.
Yukio: A pleasure. Im Yukio. Thanks for releasing me. I've been stuck in that thing for years, so it's nice to finally be free again. Oh!
His eyes flew open, wide as dinner plates and fixated on something. Wondering what the person was so surprised about, she tracked his his eyes to her Murasame.
Yukio: Y-You have the Murasame! An imperial arms!
Taking this the wrong way, Akame quickly unsheathed Murasame and aimed it at his throat.
Yukio: N-No I'm not your enemy, I just know that weapon. I'm an imperial arms user myself ya know!
As Akame didn't even blink, he slowly lowered his arm to his pocket and brought out his imperial arms, what looked to be a simple yo-yo.
Akame: That's just a toy, nothing more.
Yukio: not at all. This is Balance Spring: Baransu. My imperial arms.
Akame: Baransu? Never heard of it.
Yukio: I don't imagine you would. It was locked away with me in there, so it's not exactly just something you would hear about in the city.
Akame: well, he's got me there. What does it do exactly.
Yukio: Well that's the thing, I don't know. Its effects usually depend on the opponent, but it does have a definite affect. Balancing an unfair fight, like making me just as fast as a faster, stronger opponent. It can only give me one effect at a time though, so no matching strength to go with that speed. It can increase my intelligence briefly, alter the environment around me, or even manipulate space and time with it's trump card, though that effect is random to. Not to mention that the yo-yo and string are incredibly durable, and can bust through solid metal like tissue paper.(think killua from hunter x hunter)
Akame: Manipulate space and time!? Sit down. I'd like to speak with you.
The sat around a fire Akame lit up and talked for a bit. Akame learned that Yukio had been stuck in there for around 100 years or so, and that there were more than 48 imperial arms, just no specific number. After a while, Akame asked a question.
Akame: Yukio, can you transport me back in time with your trump card?
…
…
…
Yukio: WHAT! Why would you want me to do something like that, are you insane!
Akame: I have made many mistakes. Mistakes I finally have a chance to fix.
Her cold, black eyes turn back to their normal blood red. Tears formed in their corners.
Akame: I let so many friends die. Friends that wanted to see a better world. Friends that left a cold, empty, painful hole in my heart. And now, I can finally fill that hole and ward of the pain once again. So please. Do this for me.
Seeing the sincerity in her eyes, Yukio was faced with a troubling decision.
Yukio: What do I do? Do I help her? I barely even know her. And using my trump card like that could have devastating consequences, for not just her either. But at the same time, her eyes. The seem empty, yet full of emotion. Sadness. Pain. Regret. Fear. She must have been through a lot. And at the same time, she did save me, so I guess I should return the favor. Alright. I'll do it. Just don't blame me if there are consequences. Messing with the time stream could yield dangerous results. Are you sure you want to do this?
Akame: Yes. I'm sure.
Yukio: transporting you back could also cause some, changes, to the time. It works by melding your current mind with your past one, which not only causes excruciating pain, but also headaches. Are you sure you're sure about this?
Akame thought about it for a brief few moments, before nodding "yes".
Yukio: She really wants to go through with this. Okay. Just whatever happens isn't my fault.
Yukio got up and released his imperial arms. It started spinning violently.
Yukio: For this to work, there are specific requirements that must be met. Think about what you want to change. Who you want to change, and how you will change it. Even then, it's only a chance we'll get the right effect and trump card.
The second she started thinking about it was the second she burst into tears. Just bringing the topic up seemed to do the trick, so Yukio took this as a sign she was ready.
Yukio: TIME FOR MY TRUMP CARD! I hope this works. The requirements are perfect. I can't let her down! You can't turn back the clock, but you can wind it back up again! Gateway of Eons. TimeStream Signal!
It seemed to be working. Baransu flew high into the airing started descending, its string staying above the two so it didn't slice them in half. It started rolling around them at light-speed, creating a circle, with the string acting as a dome. Inside the ring Baransu had created, a giant, transparent clock formed beneath their feet, with a timeline appearing between the two.
It worked. The timeline started going backwards, while the clock was going in reverse, both speeding up by the second, as if they were rewinding.
Yukio: Set the time you wish to travel to.
At first, Akame didn't understand what he meant, but when she touched the timeline, she understood exactly. When she moved her hand on the timeline, it moved with her, showing pictures of what happened in each moment of each day(like rewinding a movie). She swiftly slid her hand to the right and the timeline speedily rewinded. She stopped it on a certain day she remembered all too well. Akame examined the spot on the timeline. It was showing pictures of what happened that day. The day they raided Aria's mansion.
Yukio: Is this the day you wish to travel to?
Akame:Yes.
Yukio: Then adjust the clock to the time of day you wish to enter at.
When Akame touched the hour hand, the images on the timeline stopped. When she moved the hands, the images moved as well, corresponding with the given time.
She adjusted the clock time to 4:00, purposely earlier than when they went to the mansion so she could get a better grasp on how to handle it when she got there.
Yukio: Is this the time of day you wish to return to?
Akame: Yes it is.
Suddenly, what looked to be a keyhole appeared just above the center of the clock.
Yukio: Then return to the center.
When Akame's feet were perfectly planted were the center of the clock was, the other parts of the timeline started breaking of and folding up into the shape of a key. Once it was done, it turned into a solid object, just floating there. Akame was about to ask what to do next, but before she could, Yukio asked her one more time.
Yukio: Akame, are you absolutely sure. Once you've done this, you can't come back.
Akame: Yes.
Yukio: The place the key in the keyhole, turn it, and get ready.
Akame forced her iron grip on the key, and swiftly, but steadily placed in in the keyhole. Once it was in … she turned it. There were a few clicking noises, and then the sound of a grandfather clock and it's twelve chimes. As the chimes went on, the spot on what was left of the timeline started glowing bright like a signal flare or beacon. That bright light started moving like a stream into the key in Akame's hand. On the other side of the clock was no longer the ground that stood beneath them, but the moment in time Akame had selected. The clock started to crack like glass as the eighth chime played, and Akame, for the first time since the fall of the empire, … smiled. She was going back. She could finally fix the terrible fate her friends endured for the future. They could finally see the light of the new world …. The twelfth chime hit, and the clock shattered, and Akame fell into the picture.
Akame: I'm coming everyone. I'm coming.
Yukio: She's smiling. That's the first positive thing I've seen her do this whole time. Wait a minute, I'm in the circle to! And because of the string, I can't get out!
Unfortunately for Yukio, he had not known that he would also be transported upon using his trump cards time affect. He plummeted into the picture right after Akame, like a meteor falling into orbit.