Bai Ming, the snake demon of the Hehuan Sect, and Jiang Qingyan, the Lingshuang sword master, are natural enemies. Jiang Qingyan always ruins Bai Ming's good deeds, and the two have a long-standing grudge. One time, Bai Ming was seriously injured and on the verge of death. When he kissed Jiang Qingyan out of anger, he accidentally transferred the poison of love to the other party. He wanted to end it, but when he woke up, he found that he was involved with Jiang Qingyan, and the other party healed his injuries. Bai Ming was so frightened that he ran away all night and hid in the mortal world but found himself in trouble. At the critical moment, Jiang Qingyan appeared and rescued him. From bitter rivals to being together day and night, the old-fashioned sword master gradually protected the snake demon, and Bai Ming also found his own warm home while getting along with him.