What is the author's style in Year of Impossible Goodbyes by Sook Nyul Choi?

"Year of Impossible Goodbyes" is told from the first-person viewpoint of Sookan, a ten-year-old Korean girl in 1945. Sookan likely represents Sook Nyul Choi, the author of the book, but it is not autobiographical. Sookan has been raised to appreciate both Buddhism and Catholicism, but she wonders which religion can help her understand the tragic events going on around her.