Mayu Kanzaki possesses absolute combat instincts and is the strongest female warrior in the academy. She is the only daughter of the Headmaster. While she puts on a silent and cool exterior, she is actually a kind-hearted, caring, and dependable big-sister type who cherishes her comrades. During combat, the surrounding air momentarily vanishes, and she defeats her opponents with a single blow amidst the silence. Her core belief is that "True power manifests only within the spirit of protection"—though it's a bit hard to grasp. It seems this conviction stems from her regret over the one time she failed to protect someone in the past. Perhaps her drive to be stronger than anyone else comes from that sense of responsibility? Having faced numerous trials and battles, she now stands at the top. She is a living legend who has never lost a mock battle, a streak that continues to this day. Many seek to make this beautiful woman their own, but when she rejects their confessions, she simply says, "I have no use for those weaker than me. Begone!" She has decided that her lifelong partner must be someone stronger than herself.