You Have to Repay Your Savior

When she saw the princess who was unfairly exiled, she remembered her younger sister. She felt sorry for her and took care of her… “Thanks to you, I wasn’t lonely at all in exile.” The princess’s older brother rebelled and became the emperor! Naturally, the exile of the princess ended. “You saved my life last time, so you are my lifesaver. Come with me to the Imperial Palace.” Eventually, she went to the Imperial Palace with the princess and met the emperor… “…Jerald?” Wait, why was her ex here?