Luna, the illegitimate daughter of the Hart family, marries Ethan in a political alliance. After three years of cold treatment in the marriage, she develops endocrine hysteria. During her medical consultation, she meets Quinn Sterling, the top authority of the hospital, who falls in love with her at first sight and appoints her as his personal assistant. After catching Ethan cheating with her elder sister Mia, Luna decides to file for divorce. Later, it is proven that she is the legitimate eldest daughter of the Hart family. Protected by Quinn, Luna eliminates all hostile obstacles and finally gains a happy love.
