Twins are regarded as an ominous symbol in this country.
One of the two will always die,
To complete the unity of souls, they call it "circle".
Legend has it that the fragile soul cannot bear the pain of being torn in two, and longs for a half-body embrace.
It just so happens that this is another cursed underground kingdom, where there is a pair of twins among ten pairs of newborns.
Their country was not originally underground,
Thousands of years ago, there were twin princes in the Felit Empire.
The younger brother Saihet was unwilling to dedicate his fragile life to his brother Serent.
Therefore, he seeks witchcraft beyond his control to assassinate and curse his brother.
Their positions were reversed, and Serent became his brother's substitute.
Bear the pain, illness, and injury for him,
He drove his brother and his cronies underground,
At the same time, the "honorary substitution system" was established.
They have no official name underground, they are just called "underground people"
The local people must have a ruler,
He is just a ruler, not a "king".
Rulers will be chosen by force,
The strongest local citizen is the ruler.
And as a ruler, as a colony,
He should serve his "King" and his "Mother Country",
He must sign a contract and become the substitute of the King of Felit Empire.
Just like Serende, he endured everything.
Generation after generation,
Thousands of years have passed since the dispute between Serent and Serhet,
Thousands of years of time,
Let the underground people master advanced technologies that the Felit Empire cannot master,
The patriarch of the first family in the underground area, Yun Xin=Winfrey,
While signing the honor contract,
Also declared war on them.