Reborn on the eve of her elder sister faking an illness to seize the opportunity to enter the capital, she remembers how, in her previous life, she went to the capital in her sister's place to support her elder brother, only to have her life-saving medicine stolen by her own family. This time, she willingly gives up her place and stays behind to run a village clinic. Her brother and sister encounter obstacles at every turn in the capital and eventually return to beg her for help. A mysterious man secretly protects her, but his identity hides a startling secret. This time, she chooses to live for herself and settle old scores little by little. But who really tampered with that life-saving medicine?