Shortly after LJO's first major event, the vivacious and musically gifted Fau joins Yuto's ever-growing family, and Yuto finally graduates from newbie status when he moves up to an advanced job class. Meanwhile, another player succeeds in unlocking an Elemental Gate—one of four mysterious locations named after the classical elements of Earth, Water, Fire, and Air. What wonders await Yuto when he stumbles upon another of these gates by chance and decides to embark on a journey?