Four Inches Below

In the New Age where power meant everything, it was inevitable that a social discrepancy would occur and thus, the society was divided into three categories: Alpha, Beta, Omega. Born as an Omega, the lowest of the rank, Kinoshita Ayumi had to enroll herself to the infamous Kyuten Gakuin, the battleground for ranks and also the only place where she could breathe aether freely. But how was she supposed to survive from this perilous battleground being the weakest of Omega?