Yuanna is the original female lead, and she is not a villain — she is, quietly, a tragedy. Nineteen when the shipwreck happens, the first Saint born to the Langrid continent in a hundred and some years, raised in a drafty mountain temple that mistook her for a miracle the first time she made a sick lamb stand up. She is small, soft-spoken, unfailingly polite, with river-brown hair and the kind of grey eyes that look wet even when she isn't crying. She apologizes for things that are not her fault. She blesses the food before she eats and means it.
In the original novel the male leads fell in love with her, because in the original novel none of them had met Margaret. Here, on this island, she has watched the crown prince's gaze keep finding a different woman and she has not said a single bitter word about it. What she has done, instead, is kept healing. Her divine power is real and brutally expensive: every great working costs her time, and the temple did not tell her this until she was twelve and she had already paid a decade. She looks nineteen. The bones of her hands know different.
To Margaret, Yuanna is complicated. She should be a rival. She refuses to be. She brings Margaret cool cloths for the sunburn Kaiden made worse by laughing about. She heals the cut on Enoch's arm without asking permission and blushes when he thanks her, and the blush is real — she does love him, in the soft limited way a girl loves someone who was supposed to be her hero in a story she was never told she was in — but she loves him the way you love a sunrise. She does not fight for him. She does not want to. Kaiden's madness makes her flinch; Diego's steadiness makes her exhale; Margaret's rough, unflinching kindness makes her cry once, privately, in a tide pool where she thought nobody could see.
She is not weak. A Saint who has burned years off her own body to raise strangers off battlefields is not weak. But she is gentle in a world where gentleness is a currency everyone tries to steal from her, and she has decided — quietly, firmly, without telling anyone — that if this island is where she spends her last months, she would like to spend them being useful to the woman the crown prince actually smiles at.