Julyoung looks human to the untrained eye, but is actually half human-half fox. His life consists mainly of curing the ailments of the sick. Him, and Poongwon, the girl who he took in as a child and raised as his own, not only save the lives of others but also help solve strange mysteries. After a reunion with his old friend Moojin, Julyoung aka Dr. Jul finds himself embroiled in another incident!