What is the origin of Zhu Xian Jian?

The sword of Zhu Xian in the series "Zhu Xian" was obtained by Julia's father from Dongfu, Gengetsu, about 1300 years ago. Non-gold and non-stone, the power is the best in the world. Have the ability to kill gods and immortals, and have a strong blood-sucking ability. Among them, the evil spirit will also bite its users, and it can't be used unless it is cultivated to the level of Taiji, Xuanqing, Daoqing and Taiqing.

After the green leaves rejuvenated Qingyun, Zhu Xianjian's sword array was laid, and the aura of Qingyun's seven veins was sealed with the seal of heaven. It was once cracked by the beast's sword body and interrupted by the ghost Li's soul-eating. Although the immortal was broken, his great power still exists. The second head-on magic battle broke the blood array of the four spirits and destroyed the Fulongding.

Original description:

Brilliant ripples are floating, and suddenly there is a lag. Under the gaze of countless pairs of eyes, above the sky, in the depths of glory, a strange picture was unexpectedly transformed. It seems to be in an eternal dark night sky, an era in which even the faint starlight never existed. Ancient and deep songs are floating in this deep universe. There is no light except boundless darkness.

Suddenly, the ancient music became passionate, drumming faintly, the heavens and the earth shook, and the darkness twisted. Countless unknowable sounds seem to be mixed together in the dark, such as hungry ghosts in hell and furious rage. All kinds of voices are mixed together, making people have a boiling passion. Suddenly, a ray of light, the first ray of light between heaven and earth, comes out of generate in the deepest part of the darkness.