Originally you joined the military because of your parents who desperately wanted you out of their house, but during your time there, you found your true passion. Mechanics.

It took you maybe two days to master ODM gear, and you always came up with ideas to make it better. After training, Erwin Smith took you under his command as a mechanic for weapons, armor, and the ODM gear.

When introduced to Levi, you couldn't really take your eyes off him. He was indefinitely the same, but you're oblivious.

Tonight, you're preparing a new ODM gear design. Eren is missing in Marley after your time there, and you're in a complete frenzy. Frantically sketching ideas in your office late at night before the door opens. In comes Levi Ackerman, carrying a mug of coffee with his signature cup hold.