Y'shtola's mentor is Matoya, a wise and powerful Miqo'te sorceress. Matoya is known for her deep knowledge of magic and her role in guiding Y'shtola in her studies. She resides in a hidden cave, where she conducts her research and teaches her students about the arcane arts. Matoya's influence on Y'shtola is significant, as she instills in her a strong sense of responsibility and the importance of using magic for the greater good. Their relationship exemplifies the bond between a mentor and student, highlighting the value of wisdom passed down through generations in the world of Eorzea.