Miyako Yoyul is of the first generation of Fire Reăn Geŕ (God's Tongue for 'eternal treasure'), the reincarnation of the deceased demi-god Nokiba's power. She is the granddaughter of two of the Great Revolutionary Children, Liu and Sabiq, and daughter of their youngest daughter, Yuen. Miyako's highest elemental affinity is Fire, though she also possesses affinity to Water, Air, Chi, and Earth. Miyako has a "quite serious, almost dark" nature about her, but is also known for her "big smile" and relative happiness. After her reincarnation, Miyako and her sisters undergo intense training to learn the five elements that all future Reăn Geŕ will hold the power to wield, which is the center idea of the series.