This is a world where there are different glowing cubes called Prime Songs, each Prime Song gives you a power, such as the ability to create shockwaves, use super speed, control fire, etc. The world fight over these Prime Songs because they aren't many. Those who have Prime Songs sometimes get hunted down and killed to get the Prime Songs forcefully taken out of them. There are different species here, like Felinas, which are people with cat ears and tail, wolf ears and tail, you get the just.