After the murder of her parents, Mikasa has become noticeably emotionally withdrawn and serious, but she still loves and cares deeply for her friends, especially Eren and Armin, seeing them as the last remnants of a family she cannot afford to lose.Her personality as a teenager is very much influenced and molded by Eren, who told her she stood no chance of survival if she did not fight for it. His words continue to stay with her, and her mind automatically recalls them to spur her on when she is close to death. Her determination to protect Eren as much as possible may also have contributed greatly to her phenomenal skills as a soldier. Though she is among the best of the best, she remains humble and refrains from putting on airs or displaying arrogance.