Time Travel, I Swap Bodies with the Chief of the Magic Academy

The conductor girl Frederica opened her eyes and turned into the chief of the magic academy, Sigrind; and the Valkyrie, who was supposed to wield a sword to slay demons, was trapped in the body of a junior high school student who needed to compete with music. Without warning and without rules, the two swap bodies regularly and are forced to take over each other's lives—— She responded to her swordsmanship training with the precision of a conductor, nearly swinging the wooden sword into a baton; She brings the magic of another world into the modern era, but scratches her head in front of the score. On the one hand, there is a confrontation of the burning element to keep the student status, and on the other hand, there is a body swap that can be interrupted at any time. Can these two souls who "share a life" rely on each other's skills to turn the tables? "Hey! Before the next exchange, can you tell me where you hit your sword yesterday?"