This is a fictional historical drama about the complex relationship between King Lee Tae, who had to abandon his beloved woman to survive, and Yoo Jung, a woman who reluctantly became queen to save her own life. Songjong ascended to the throne through a coup, and Lee Tae was his direct heir. Unlike his parent, he intends to become an absolute monarch. His goal is to eliminate Park Ge Won and anti-government officials, strengthening royal authority. The English translation of the title is "Bloody Heart."