Ascension Fanfiction - AOT

a fictional post apocalyptic story where the titans have invaded and took over the world 13 years ago and The world government rose to fight off the titans. After 12 years of fighting, different guilds and teams fortify their base to protect their loved ones from the titans and got used to the titans and learnt how to defeat them easily. However, only a year ago a new species of unidentified beings have raided and eradicated groups of guilds. For the past year, people have been on the run from these unknown monsters as they try to survive with their families. The world government itself has almost lost all hope of trying to identify and destroy the monsters..... all until a shadow team of titan assassins ascended to be the first team that could face such horrible threat.