Power Level

School Ranks

 * F rank: 0 to 1000
 * E rank: 1001 to 2500
 * D rank: 2501 to 6000
 * C rank: 6001 to 12000
 * B rank: 12001 to 25000
 * A rank: 25001 to 40000
 * S rank: 40001 to 60000
 * X rank: 60001+