Seventeen-year-old Shui Linglong, a sophomore in high school, traveled to the late Southern Song Dynasty because of an expedition into an ancient cave in a barren mountain. She personally experienced the bloody storms in the world, the disputes and infighting among martial arts sects; she witnessed the power of the Mongolian people and the cowardice and incompetence of the Southern Song Dynasty court. She is indifferent by nature and only wants to return to modern times, but a series of encounters make her gradually fall in love with that era...