Ning Wuchen, a young man from a poor family, awakened the ancient sword veins in a desperate situation, obtained the inheritance of "Tianyan Sword Heart", and embarked on the path of cultivation. Entering the Xuantian Sword Sect, he climbed up the Sword Questioning Staircase and caused thousands of swords to roar together. However, he did not know that he was responsible for the cause and effect of the first sword master, and was involved in the mystery of the demise of the ancient sword cultivator. On the way to practice, he created the Xinghen Sword Way, fought against Tianjiao, and defeated demonic calamities. However, he discovered that the so-called "ascension" was actually a scam - the demons from outside the realm had already eroded the upper world, and the Tianyan Sword Heart was the last fire of Killing Heaven.