City of Blades

In a world full of greed and chaos, where power-hungry companies build there empire while the slums rot in despair, not many carrier options are left for Ketsueki Ansatsu, a young girl who has lived in the slums her entire life. After she wins a lottery contest to be transferred to one of the most prestigious schools in the country, she realizes her new class, and her teacher, are not what they seem.