Sang Yu and Zhao Qiwu
Childhood sweethearts, they grew further and further apart.
He was a frail prince whom no one favored. She was the capital's most celebrated noblewoman.
A power play involving a bride swap turned her from a prospective Crown Princess into the talk of the town.
Caught in the whirlpool of imperial power, she saw possibility in him where there should have been none.
The two of them struck a deal.
She thought she had escaped the trouble.
But the struggle for power and the contest among those at the top were never confined to one corner of the world.