His body soars through the trees one crisp winters day. The cold air made his joints ache and the cool winds burn his cheeks but Eren paid no mind. He had other things on his mind like the Titan he was chasing. His eyes burned with rage from witnessing another comrade losing their life to a man-eating titan. He was too late to save them since he was out of range and he couldn't just let the monster just walk away freely. He quickly adds more gas to his gear and readies to make the end blow to the nape of its neck when he heard a wail. It wasn't the typical wail of pain or agony of a soldier but of a baby?
"The hell?" He whips around the creature's head and lands on the nearest tree that gave him enough view of what he was supposed to be seeing.
The mouth out of the titan was wide open with a creepy grin. Blood from its previous meal still fresh on its lips but that isn't what concerned the teen. Inside its mouth was a baby. The blanket it was swaddled in caught dangerously close to its canines. If the titan chose to eat again it'll prove fatal to the little one.
Thinking fast, Eren leaps off the trees and impales his swords into both of the Titan's eyes to blind it. It yelled in pain, causing the baby to scream as well. Eren reached the mouth and yanked the baby out of its prison just before the titan closed its jaws. As much as Eren wanted to avenge his comrade he couldn't put the little one at risk. Instead, with a heavy heart, Eren takes off in the opposite direction of the titan to safety.
Once sure that the coast was clear, Eren checks on the still wailing babe. Blood covered the child's body from head to toe. He was relieved that none of the blood was theirs though, only scared and cold.
"Shh, it's okay," Eren cooed while gently rocking them. " you're okay, it's okay."
It doesn't work. The baby was too startled at the gruesome events that even rocking 'em doesn't seem to work. Eren just hoped that the titan didn't damage the little one's hearing. Only one way to confirm it. Looking around to confirm no one or nothing was nearby, Eren tucks the babe into his cloak and rocks his body to and fro before singing. His voice is like wind chimes in the summer breeze as he sung the calming lullaby his mother used to sing him when he was upset. The baby's crying soon stops and slowly but surely falls to sleep.
"There we go," Eren smiled.
Just then the retreat signal flares in the sky, alerting Eren and many others it was time to head back to headquarters. Carefully, the teen holds the baby close to his chest with one hand and swings back to his squadron.
When he meets up with his team the baby had not made a sound nor did anyone paid him no mind to what he cradled to his chest. All this went unnoticed until they entered HQ when they heard it. The baby had woken from their relaxed slumber and was now hungry, Erem supposed. All heads snapped towards Eren with startled if not surprised looks. Eren paid no mind to their stares as he unravels the hungry child and tries to calm them down.
"Shh' it's okay," To say everyone was surprised to see Eren Jaeger, the suicidal brat, calming a child like a natural. One would think he was the father of the child.
"When did Eren have a kid?" A few whispered, their curiosity intrigued.
Mikasa stood in the background murmuring curses to the supposed "mother" of Eren's "child".
All went quiet when Corporal Levi approached the boy, not really pleased with having a child in the squad, not wanting to have to deal with the crying that came with it. "Jaeger, whose child is that and where did you get it?"
"Sorry Corporal, sir, but I need to get the baby cleaned up and could someone please warm up some milk for me please, thanks." With that, the boy rushes out of the room and down to the washroom.