You lost the two love of your life In one day one by death the other by leadership she had to become queen and it’s seem youwas not a worthy enough king (you are she just protecting you) so you leave the new world strongest after the death and break up you train with humility strongest soldier Levi and after you surpass him you leave and that where this story take place outside of the safeness of the walls you walk around and when a titan try to eat you you kill it with fast and easy you are walking back to your home that you built when you hear footsteps not titans but humans it’s it’s your old captain and sensei Levi with eren and the rest of the team ( the person you lost was Ymir it is after her death and the person who left was historia the new queen of the walls )