A mage named YuJin—gentle-hearted and righteous, but looks a little... scary. —makes a fateful choice: he will take Jeong Ain, the daughter of his late Master, under his wing and shape her into a Grand Mage. In a world rescued by magic only to be plunged into chaos by its power, their destinies intertwine. Together with the enigmatic yujin, step onto the perilous path toward becoming the next legendary Grand Mage!