Sana Rehman comes from a long line of famous military personal that have protected the citizens of Paradis from the blood-thirsty titans for years, and now it is her turn to join. She joins the 107th training division after the fall of Wall Maria and is thrown into a world of titans, revenge, and sorrow. Her goal is to liberate the people trapped in the walls and explore the world outside. With Jean Kirstein at her side, she is an unstoppable force on the outside, but the inside she is riddled with guilt and self doubt, not to mention deep feelings for those around her.