Akkebono Yoyul is of the first generation of Water 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. Akkebono's highest elemental affinity is Water, though she also possesses affinity to Air, Chi, Fire and Earth. Akkebono is a "serene" girl who prefers to look for the best in others, but is quick to defend herself and those close to her, sometimes very aggressively. After her reincarnation, Akkebono 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.