She is the concubine of the prime minister's house. She was born with stunning looks, but her life is like a duckweed. Her mother died young and the cause of her death was a mystery. She grew up in the cold eyes of her aunt and the bullying of her sisters. She only wanted to one day uncover the truth about her mother's death and avenge her mother, even if she stepped into the endless hell.
She is the daughter of the current emperor, with noble blood and powerful power, but she is not the legitimate emperor after all. Her cousin Hayata, the late emperor's posthumous son, was made the crown prince. This was a move played by her mother to appease her old ministers. She is unwilling to be inferior to others or to be a symbol. She wants to become a unique female emperor, and she also wants to completely eradicate the shogun who stands above the imperial power.
A well-designed political marriage involves Chiyo Saito in the chess game of Kisaragi Shinone. She became a sharp blade in her hand, but she also gradually saw clearly the ambition and loneliness of the princess. They used each other in their intrigues and tested each other in life and death, but in their confrontations, they gradually developed a bond that transcended blood ties and interests.
When the truth is revealed, hatred and ambition intertwine, emotion and power collide, are they each other's salvation, or are they destined enemies?
In this world dominated by men, can they work together to break the situation and find their own way out?
Concept: Under the iron wall of patriarchy, two women disciplined by blood and gender use hatred and ambition as blades to split the shady curtain of power; when revenge and imperial power collide, they must make a choice between "becoming themselves" and "having each other" - the end point of the plot is not the throne, but the freedom to no longer be defined.