An orphan girl from a poor family who avenged her brother entered the Imperial Palace, the center of power, as a substitute. She used the pen in her hand (strategies, memorials) as a weapon and participated in the court games as the "pen" of civil servants. She seems to be a pen, but she secretly uses the tip of her pen to plan for herself. She wrote an article for a very powerful prince and important minister, but she hid deadly traps and seeds of public opinion in the article, gradually guiding the direction of the court and causing her enemy to be discredited in the political storm. In the end, she grew from a pen held in someone's hand to a pen holder.
