Hawi (Lee Yeon Hee) is denounced as a Japanese spy. Gwanghae (Cha Seung Won) senses that Kang Joo Sun (Jo Sung Ha) is involved in the accident in Hawgidogam and he pulls strings from behind to put the guilt on the King.
Hong Joo Won (Seo Kang Joon) helps Hawi to escape asking earnestly to search a way to prove their innocence before he may have had his chips soon. Hawi visits Kang In Woo (Han Joo Wan) to ask him for help.
Joo Won's father tries to persuade his son in a prison to confess the King knows everything, but Joo Won denies that Gwanghae was ever involved with the case.
The King visited him says he is not going to save his life and he will interrogate the prisoner by himself. Joo Won repeatedly asks the King not to lose Hawgidogam and Gwanghae is deeply impressed by the man cares about the country.
The King feels sorry for Joo Won's misfortune as Heo Gyun (Ahn Nae Sang) is sure that Hwai is not only a cat's-paw of Joo Sun but also the Japanese spy.
Queen Inmok (Shin Eun Jung) instructs court lady Jeong to bring her up to date on what's happening. The court lady saw a most wanted criminal posted up on the wall by chance recalls the young man caused disturbance yesterday on the Queen's doorstep.
Meanwhile, security guards pick up a bracelet which Princess Jeongmyeong dropped around the door.
Joo Sun incites his friend to persuade the son to reveal the truth saying he can save his life unless he covers up for the King while pretending he is on the same page with Gwanghae in front of the King who have passed a sleepless night.
Hawi and In Woo sneak in Hawgidogam and find out the crime was done deliberately by someone used an unbalanced mixture of sulfur and coal in a furnace to create a poisonous gas.
Hawi is so upset about sulfur already melted away in the furnace without leaving any evidence. In Woo is also devastated by the news.
As time is running out, Princess Jeongmyeong seems to promise herself she is going to do something, "I cannot just give up."