Caster (Elsie Chapman)

Aza Wu knows that casting magic can kill--it killed her sister--but she needs money desperately to pay off Saint Willow, who controls her sector of Lotusland, and save the family teahouse, so she secretly enters an underground casting tournament--and finds herself competing against other castors with "full magic," and where even victory could cause her to lose her freedom, her magic, and her life.