I really enjoyed this book! It follows Lan and Zen, our two main characters as they meet and work together to fight against the colonizing power in their homeland, the Elantians. Lan works as an indentured worker in a teahouse 12 years after the invasion when she meets Zen, and they subsequently free her, where she begins to learn more about her past and her abilities. 

First things first, the world building is AMAZING and inspired by Chinese mythology and history. It is so, so immersive, including the language, customs, and spiritual beliefs. For example, words like "I'm sorry" are "Forgiveness" in their language and the depth really helps you stay engaged. There is a lot to learn in the beginning, so you do feel confused when first picking it up and it is a bit slow but it does get easier as you learn more. Throughout this book there is continuous world building, especially as you learn more about the past dynasties and the four demon gods. It does feel like a lot to learn, but I assume that's to set you up for the last fourth of the book and sequel. Even as a YA, there is commentary on the horrors of colonialism and forced assimilation of the Hin citizens into Elation society. 

The magic system is very unique and is based upon a person's internal qì and the balance between Yīn and Yáng, and use this magic through Seals. It was explained in detail to where you could understand it easily, and I found it interesting that there were variations, with Lan's musical ability to make Seals and use her qì.

As the book progresses, I really enjoyed getting to know both Lan and Zen and seeing each perspective since it is dual POV. Both struggle with what is right and what's wrong morally in how to fight against a too powerful enemy that's already conquered their homeland and killed and hurt their loved ones. There is a slowburn romance, but it is not a central part of the story and it's very much plot driven. One critique is that it is hard to care for the side characters, because I don't feel we have had enough time with them and development, specifically characters like Shàn'jūn. They felt more like plot devices to further either Lan or Zen's journey (with the exception of the grandmaster). Overall though, I do feel connected to the main characters as the story goes on and you can see the choices they grapple and their shared convictions. 

The last third to fourth of the book, the action picks up immensely. You have plot twist after plot twist, and I couldn't put the book down here. The stakes are extremely high and it stays tense until the end. I am excited to continue the next book, and I also think it sets it up well to where we will explore more of the side characters such as Shàn'jūn, Tai, and Dilaya.