Wow, I am so glad to finally be posting this review! I was lucky enough to receive an ARC pretty far in advance and devoured it immediately, because I loved Starfish so much, but I gotta tell you guys, this book? It blows Starfish out of the water. This was one of the most heartbreaking, gorgeous stories I have ever read, and there is so much diversity I could honestly yell about it forever.First, let’s go ahead and talk about the diverse representations in this book: Rumi, the narrator, is not only multiracial (Japanese, Hawaiian, and white), but she’s also questioning for the bulk of the book before tentatively coming out as both asexual and aromantic. Among the side characters, everyone is either Hawaiian, Japanese, Korean, Samoan, Filipino, black, or some combination of the above. The Hawaiian locals also primarily speak Hawaiian pidgin English, which added an incredible touch, especially after having learned that Akemi Dawn Bowman learned to speak it from her own father.Second, you need to know that this is a book almost solely dedicated to processing grief and the loss of a loved one. If you cry at books ever, you should probably have tissues on hand. I was literally sobbing through so many chapters. I don’t have a sibling and don’t know what losing one feels like, but Rumi’s pain is so tangible. As a mother, my heart also broke so much for Rumi’s mother and the obvious struggles she was going through, especially once she was able to talk to Rumi about what had happened and how it was affecting her mental health.Another thing Summer Bird Blue does so well is its depiction of how trauma affects our mental health, and how important it is to seek help and to not vilify those who need assistance getting through difficult times. Rumi spends much of the book determined to stay in this dark place she’s been sent to by her sister’s death, but we get to watch her learn that it’s necessary to let people in and accept help in healing. On top of that, these side characters are incredible—they all feel so three-dimensional and wonderful, and I would honestly read companion novels about at least six of them.One thing that I hope everyone will keep in mind while reading Summer Bird Blue as it releases, is that Rumi does come across as a very coldhearted, callous character for much of the book, but she is human and she is grieving. She has lost not only her sister and best friend in the world, but she feels abandoned by her mother as well, and everything has essentially combined to utterly break her by the time she reaches Hawaii’s shores.I think Rumi’s characterization is a poignant reminder that grief can destroy us all in different ways, but just because we lash out doesn’t mean we are bad people—sometimes it just means we don’t have the proper tools to cope with what has happened to us. The most beautiful aspect of her negative behavior, though, is how it gives the people in her life this opportunity to show how important it is, whenever possible, to stay by her side—they don’t give up on her, but offer her their strength and support as much as they can, no differently than any of us would do for our own loved ones.I know I’m rambling, and this review has gone on way too long, but this book just meant so much to me and it is imperative that I express to you how badly I want to see it, and Akemi Dawn Bowman’s writing career in general, succeed in every way possible. Please, do yourself a favor: pick up a copy of this book. Pre-order it, ask your library to stock it for you, whatever works—you won’t regret it.