With the Military Police
Nile woke about six hours later, the sun was greeting the sky signifying it to be about six. He quickly removed himself from his bed, grabbed the required device from his desk and walked up to Mikasa's room. He knocked on her door, just to be sure, when he heard no response he pushed the door open, revealing her sleeping form still on the mattress, just as she had been laid last night after her time with him.
He turned the device on and selected the nearest chip which was unnamed at the moment, that would need to be changed soon, he selected 'power on' on the device's screen. There was a small beep that came from Mikasa's neck before her eyes flittered open, sitting up and upon the sight of him her eyes exposed true, unfathomable horror. I guess we forgot one step. He switched the chip off, causing Mikasa to collapse back down to the mattress. He scooped the girl up and carried her down to his office so he could fix their problem in privacy.
He placed her in a stationary chair across from his desk. He handcuffed both of her wrists to the chair and flipped the chip back on. Her head rose from her chest and she desperately tried to scream, her throat was too sore from last night's events to be in working order. This got much easier. Nile clicked history, on her chip and started relabeling everything, good or bad, changing what happened, and most importantly what choice she made.
After he'd finished 'fixing' her memories and labeling her chip, he asked her some questions about the things he'd changed. "What is your name?" Nile asked. "Mikasa Ackerman." She replied. Good. "What place did you rank in the 104th?" He asked. "1st." She replied. "What happened to your parents?" He asked. "They were murdered." She growled. Correct. "By who?" He asked. "Eren Jaeger." She snarled. Perfect. "What military branch did you choose?" He asked. "The Military Police." She stated. Very good. "Why?" He asked. This one had no input by him, only her brains believed connections as to her 'decision'. "To get as far away from Eren Jaeger as possible." She growled. Interesting. Hopefully Eren pays us a visit soon.
"One more question, do you have a relationship with anyone?" He asked. She smiled, slightly. As one would expect Mikasa Ackerman to smile. "You, of course." She sighed, dreamily. Perfect answer. "I'm sorry about this right now honey." He sighed, switching her off. Her chin crashed into her chest as she started to fall forward stopped by the restraints on her wrists.
He unlocked the handcuffs, causing her to fall off the chair. He scooped her up and carried her downstairs, into the holding cell, propped up in the back corner, her chin covering the Military Police unicorn emblem on her new jacket. 'Now, we wait Mikasa.' Nile thought as he watched her old Survey Corps jacket burn in his office's fireplace to nothing more than ashes. An old, unwanted memory.
With Levi's squad
As soon as the sun had settled in the slightest bit Eren had gotten everyone that was going on the rescue mission up, ready, packed, and saddled in less than ten minutes. Clearly he needed Mikasa more than he was letting on. Why else would he be so frantic to get her back? Everyone wanted her back, it just seemed that no one wanted her back as badly as Eren needed her back.
"Jaeger, calm down, if you're all jitters you'll notify the Military Police bastards miles away and we'll have no chance in hell to get her back, much less before the do something irreversible to her." Levi scarred. "Y-yes, sir." Eren replied. "Everyone mount your horses, the sooner we get Ackerman back the sooner Jaeger can keep his shit together." Levi ordered, while insulting Eren. They rode for three hours, to reach their base, find a good vantage point, and get into their positions.
The Military Police was to have night training today, they waited for a majority of the soldiers to leave the building before making their ways in. To rescue one of their best soldiers.