I've heard this compared to Hunger Games and... yeah, it pretty much is. It's just a manga/ graphic novel version that is just as dark and depressing, yet oddly good. There aren't any science fiction or fantasy elements in this story, just a bunch of ninth graders trapped on an island with weapons and forced to kill each other until only one remains. There is a lot of back story though on some characters which adds to the depth of it. Sometimes I got a little lost on who was who or who liked who, so it's essential to pay close attention when reading. Also, I hadn't read a manga in a while, so it took a hot second for me to get in the habit of properly reading from right to left. Definitely an interesting read!