Once there was an orphan girl in the nation of Marley, she was homeless, nameless, until she was taken in to be worshipped as a Goddess Ymir. When confronted by Marley's Public Security Authorities, the man that had taken her in claimed that it was all her idea. Instead of calling out the lie she embraced her role as Ymir. She was tossed down cliff, turned into a Titan where she wandered aimlessly for decades as a mindless monster until she ate a Titan shifter and inherited his abilities.