She Who Became the Sun

In 1345, China lies under harsh Mongol rule. For the starving peasants of the Central Plains, greatness is something found only in stories. When the Zhu family’s eighth-born son, Zhu Chongba, is given a fate of greatness, everyone is mystified as to how it will come to pass. The fate of nothingness received by the family’s clever and capable second daughter, on the other hand, is only as expected.

When a bandit attack orphans the two children, though, it is Zhu Chongba who succumbs to despair and dies. Desperate to escape her own fated death, the girl uses her brother's identity to enter a monastery as a young male novice. There, propelled by her burning desire to survive, Zhu learns she is capable of doing whatever it takes, no matter how callous, to stay hidden from her fate.

After her sanctuary is destroyed for supporting the rebellion against Mongol rule, Zhu is flung back onto a collision course with her lethal fate. Her one chance of escape is to claim another future altogether: her brother's abandoned greatness.

Synopsis from Open Library.