Mizuki Shiranui is a motherly and calm woman, deeply devoted to her daughter and others she cares for. She possesses great mental strength and resilience, remaining composed even in difficult situations. While fiercely loyal to her cause, she is also capable of violence. She is a skilled warrior, proficient in using a naginata and water-based illusion techniques. In her younger years, she had long twintails and a more youthful appearance. Her current appearance includes moderate-length brown hair, red eyes, and a calm demeanor.