This drama is a feast for those who like world history for it took titbits especially from the pages of the Cold War. New interest must had arose in the scriptwriter when in 2017, secret JFK records (US President John F. Kennedy, 1960–1963, assassinated on November 22, 1963—drama specifically aired few days later as remembrance of his 60th death anniversary) were made public by the National Archive.This gave fresh information to make historical conjectures about the past that precisely corresponded to the facts to expound on and comprehend why particular events transpired as they did. A captivating and illuminating drama results from combining some Cold War events with some of its colorful and charismatic characters, a masterful script, and the superb acting of all the protagonists and supporting cast members.
Spoiler Alert.
The ML, Ning Yuan Zhou, was a smart and visionary espionage chief who was demoted and sent to safeguard the Wu emperor in the war. He was the composite of 2 historical figures: JFK and the powerful Director of FBI, J. Edgar Hoover, whose 48-year tenure saw the assassinations of JFK and then his brother, Robert F. Kennedy (RFK), who ran for the presidency in 1968.
The FL,Ren Ru Yin, a cool and relentless vice section head of An female assassin espionage group who was frame for killing her benefactor, the An empress. She had to defect to Wu with state secrets, seeked asylum and assumed a fake identity as a Wu princess She was also a combination of First Lady Jacqueline Kennedy, a benchmark for style and class among wives of presidents, and RFK, who, as Attorney-General in his brother's cabinet was known for his ruthlessness and toughness in combating organized crime.
The opening of episode 1, "The Central Plains was thrown into a century of chaos when the last emperor of the previous dynasty was killed, split into many countries; among them 2 were the most powerful, Wu and An."(The Cold War, which lasted 45 years, began with the competition and antagonism between the US and Russia after World War II.)
The An emperor seized 3 cities from Wu and the war with Wu started. ( Estonia, Latvia, and Lithuania were invaded under Russian leader.Stalin and incorporated into the Soviet Union)
The Wu emperor listened to ill advisers to lead the war and got captured by An, leading Wu to a state of turmoil.( JFK did not listened to security advisers not to ride in an open-air motorcar in Dallas,Texas and got assassinated which shocked and stunned the nation into national mourning.)
The Wu emperor was captured by an An general with a modern revolutionary principle of fighting to end all wars. ( Che Guevara, with his romantically Latin good looks and long, wavy hair , was a legend for freedom fighters and a Marxist-Leninist guerrilla leader, 2nd in command after Fidel Castro of Cuba in the Cuban Revolution.)
The standoff between Wu and An occurred when Wu emperor was taken hostage by An who wanted ransom for his released.( The Cuban Missiles Crisis ,the standoff when US demanded that Russian removed Soviet nuclear missiles in Cuba )
The FL, as White Sparrow, and her friend LingLong were to seduce Wu officials for state secrets in a banquet.LL was betrayed by her secret An lover and killed. (John Profumo,  the U.K. secretary of state for war met a model at a party. Unknown to him , she has a secret KGB lover. When the affair was exposed, he resigned but the Conservative Party lost the general election the following year)
Prince Danyang sending his army to ambush and killed the Wu delegation, going to ransom back his brother the Wu emperor. Countrymen fighting against each other. ( The Bay of Pigs incident, when Cuban exiles funded by CIA, landed and attempted to overthrow PM Fidel Castro)
The stunning announcement of unlikely marriage between Li Tong Guan and Chuyue by the An emperor shocked them and everyone else. He was an illegitimate son of a princess, while she was a princess from a powerful tribe. (Jackie Kennedy shocked and stunned the world when she married Greek shipping magnate Aristotle Onassis, just months after the assassination of her brother-in-law, RFK. She was from the upper-class society of New York while he worked his way from telephone operator to tycoon.They lived separate lives, she lived months in America with her children, while he was in Greece with his children. She remarried for a variety of reasons, one of which was probably PTSD following another shooting death. She had sat beside her husband when he was shot,stood beside vice president Lyndon B Johnson, when he was sworn in to replace her husband and endured a two-hour trip back to Washington with her husband in a casket and her dress still smeared with his blood. The princess, depicted as a picture of forced composure with an interior full of agony and suffering, sat waiting for an audience with the emperor for hours on end in that scene, which was brilliantly enacted in epi. 22. )
The princess left the sheltered life of the palace as part of a delegation to An, where she witnessed the hardships and impoverishment her people had endured during the conflict.She was even occasionally thrown stones and rotten vegetables to help her comprehend the animosity and wrath, and she responded by promising to restore peace.(The involvement of US in the Vietnam War with actual landing of troops resulting in heavy casualties, contributed to a great deal of animosity and outrage that its leaders failed to anticipate. The scene where Qian Zhao held his mates' badges and forced the emperor to show respect for them was a poignant way for drama to honor the troops who lost their lives fighting in foreign soil. When Saigon fell in 1975, the Vietnam War came to an end. A few days before, there was a dramatic and massive airlift to rescue US citizens, South Vietnamese government officials,their families, and thousands of others by helicopters to the waiting US Seventh Fleet in the South China Sea.Depicted in the rescue of Wu emperor by aerial lift of cables from his island prison)
The drama dragged many episodes to rescue the emperor.From the tightly guarded pagoda prison with its many booby traps to an Alcatraz like island prison. (A parody of sharp contrast from the ridiculously easy fatal shooting of the lone assassin of JFK, Lee Harvey Oswald, to killing him at close range from another lone shooter, Jack Ruby, when he was being transferred from jail to court in police custody! Done in 2 days after the assassination and live on national TV! Real life is much weirder than friction! )
Betrayal was the drama's theme. The motive of the ML was to clear the bad reputation that his espionage organisation had betrayed the emperor in the war. While the Fl was to clear her name that she betrayed and killed her empress.The Wu and An emperors exploited and betrayed their people for their own greed and ego trips. The An Empress who experienced treachery from her father, son, and husband. The crown prince divulging his father's collaboration with the enemy country.There were innumerable such betrayals in the drama. ( In ancient times the punishment for betrayal was to pull out the roots.The writer put forth brilliant deductive speculation coupled with rumors of a connection to Marilyn Monroe, as both brothers did died of gunshots and JFK's only son died childless with his wife in a plane crash. The 2017 files also established that the Russians was not involved in JFK assassination, as they awkwardly put their defence on high security alert for attacks. The files also indicated that there was more than one shooter, as bullet holes demonstrated that the gunfire originated from multiple directions, confirming the conspiracy theorists' long-held belief. Writer theories were presented regarding the conspirators who ordered extermination with extreme caution in the ML statements of “gains and losses” and Zhong Sang ,Wu PM .This historical whodunit murder mystery can be solved upon all releases of secret files once FBI and CIA lift their blocks.).

BTW, the drama has OE like the JFK files. Is the writer venting on the viewers, or is it an act of betrayal?!!