Jiang Lihua is the young Empress of the Chinese Federation. She is referred as Empress Tianzi,
Tianzi meaning "Son of Heaven." But when being spoken about, she is referred as "puppet princess" by
the Eunuchs. Because of her age and lack of resolve, the Eunuchs control her choices. She is taken prisoner
within own palace never seeing outside of the Forbidden City which she wanted out of.
In the year 2012 she saved Xingke from being executed for stealing medicine, and in exchange he promised
that he will take her out of the city. She was to marry the First Prince Odysseus, in a political marriage
arranged by the Second Prince Schneizel that granted the Eunuchs the titles of Nobles within Britannia. But
that was broken up by Li Xingke and the Black Knights. She is then placed back in control of the Chinese
Federation, becoming the first allies for the Black Knights.
When Nunnally becomes the viceroy of Area 11, she asked Zero to join the Special Administrative Zone of
Japan. All of her helpers didn't like the idea and told Zero to get the heck out of there. Using the Special
Administrative Zone of Japan, all of the Black Knights got out of Area 11, by dressing as Zero,
they all escaped to the Chinese Federation. Soon after Tianze and her friend Kaguya Sumeragi become
the Supreme Council Chairman of the United Federation of Nations.