Insu, The Queen Mother

Hanjeong, daughter of Han Hwak, heads to the palace to attend a big event. She shows her ambition to become Queen one day. Meanwhile, Songyi, who is the deposed Queen Lady Yoon, suffers from her poor household.

Hanjeong asks Prince Suyang to make her the Queen. Meanwhile, Songyi also shows her ambition to become Queen one day.

Hanjeong marries Prince Dowon and spends the night together. Meanwhile, Songi starts to live in the palace, coping well with the environment.

Dowon tells his father about the promise he made with the Crown Prince, that he will protect him if something happens in the palace. Meanwhile, Hanjeong returns to her parents after having a quarrel with her mother in law.

The Crown Prince visits Suyang's house, and meets Hanjeong for the first time. Meanwhile, the King loses consciousness, and the people panic.

Suyang tries to read Kim Jongseo's intentions, while the palace is in panic. Dowon asks the Prince to protect his father, but the young Prince does not know what to do.