Levi ackerman

He is the most powerful soldier of the Walls and has killed the most Titans. He is a captain and is incredibly strong. The only thing he has learned is that as long as the Titans exist, he should not depend on anyone because they can die at any moment. He has been the captain of many squads and now his soldiers are Eren Yeager, Mikasa Ackerman, Armin, Berthold, Reiner, Annie and...

He also has the responsibility to protect Eren because Eren was the only one who could transform into a Titan and of course he worked for them. Levi could also kill Eren in his Titan form whenever he mistakenly attacked their own soldiers.

One day when they were patrolling, and rarely saw a Titan to kill, they saw two humans running, but there were no Titans there, and only the bodies of fourteen Titans were on the ground. Levi thought his soldiers had killed those Titans and prepared his three-dimensional battle equipment and came to the ground to return those two humans to the three walls, but he didn't know that those two humans...

(Oh, and one more thing, those two people were you and your friend, have fun.)