Within the underground battle arena, the black-haired girl wielded a Silver Blade Sword, moving swiftly. The sword edge was almost impossible to clearly discern, its presence only indicated by the continuous clashing sounds in the air and the fleeting silver arc of the blade.
After a few moments, the ten crystal simulacra she was fighting against fell, shattering into a variety of crystal fragments and powder, which then slowly evaporated and disappeared into the air.
"Even so, these Sequence 4 crystal people are not agile and responsive enough. Yet, their body strength is somewhat stronger than that of an ordinary Sequence 4 Transcendent, and they are also controlled by AI to work together... However, they were still defeated in a short time," two seasoned teachers commented briefly from behind the screen on the other side of the battleground as they watched the girl stop her movements.