After eight years of arduous cultivation, Lin Jian finally obtains a flying sword of his own. But on his first trip down the mountain to exterminate demons, he is accidentally caught up in a disturbance caused by Chun Xue, a female sword immortal who has descended from the heavens. His flying sword is shattered, and the immortal loses her cultivation. From that moment on, their fates are bound together. One is a low-level sword cultivator who refuses to settle for an ordinary life; the other is an unparalleled sword immortal who has fallen to the mortal realm. Through laughter, mishaps, and trials, they help one another grow stronger and embark on a cultivation journey against the odds.