First and foremost, this is a very politically charged book that highlights and emphasizes various real atrocities where in which police brutality, demonstrations, genocide, and moments of political unrest are remembered, not just in Korea but also in Europe. I wouldn't recommend this book highly unless a political deep dive is what you are looking for, and knowing the city of Seoul would also be beneficial to reading this, as there are many long descriptions of streets and squares and rivers in the city.
dd's Umbrella is comprised of two novellas, where gentrification plays a bigger role in the first one, but also highlights grief, loss, purpose, and mourning. The second novella, the clear standout in this book, takes a more non-fiction approach to its prose, but weaves in some dazzling reflections on misogyny, homophobia, workplace harassment, and disability.
The main reason the first novella worked less for me is because I thought it had too far many meandering descriptions of buildings and passageways and shops, alongside their contents. If I hadn't read One Hundred Shadows by the same author, I probably wouldn't have cared as much, but the themes between both books, at least regarding gentrification and the damning effects on small businesses in the ever-expanding Seoul, were handled better in her debut novel.
The second novella just included much more of a personal touch that resonated with me, even while it expounds on real political attacks with references to news articles and books. It's intellectual and artsy fartsy at times, but it was a wonderful experience. Hwang Jungeun is a great writer, and you can tell a lot of her personal experiences went into this book. Not for everyone, but a good book.