Attack on Titan, Titan eren raises child
Eren is a Titan, But he is not a Titan Shifter, He is just an abnormal Titan who doesn't Attack Or eat Humans and has Intelligence.
The canon Titan shifters are Still the same.
Eren hates the others of his kind and after Attacking them but the titans always getting up he figures out that a special spot kills them(the nape) so he attacks them and then kills them by destroying the special spot, he also knows that he would die if he gets attacked at the special spot so he Protects it.
One day eren comes across a Lot of titans and just as he is about to attack he sees tiny beings that attack and kill his kind, they even knew of the special spot.
He decided that he like the tiny beings and he starts to secretly watch them from afar.
Eren Patrols His territory and beyond Killing any titan he came across. He is very good at killing the other titans and soon No titan will step in his territory.
The scouts are retreating To a huge forest that has 2 huge rocks at the entrance, As a horde of 15 titans run after them, But strangely after they go past the rocks the titans will not follow them instead the titans run away.
The scouts when returning surprised everyone as most of the scouts survived, The scouts never tell anyone about how the titan wouldn't past the rocks thinking it was a fluke.
But the next couple of times they go out whenever they are being chased and they end up in the forest the titans never attacked they just ran away.
It soon becomes the scouts best kept secret and they make a special flag And embed it in the rocks to signify that it is a safe area. Beacuse of this they always Scout near the forest, And the forest help save many lives.
Eren knows what the tiny beings are doing and he is glad they are safe, but he knows if he shows him self he will be killed so he He Uses his senses to stay away from them.
Years go by And one day Eren Finds a tiny being dead with a smaller tiny being trying to wake it. ( It's A child Armin And his mother who tried to escape the wall Or you can choose different but please Have titan eren find and raise a child)
He takes the smaller tiny being To his nest and takes care of it
( I don't know how the timeline works out, But even is older than Erwin, So he has been around a while, Armin is the same age as normal.)