There Seems to Be Something Wrong with the Demon King's Rebirth

In the decisive battle between immortals and demons, the leader of the Demon Cult, Wen Liaoshen, dies. When he was dying, he performed the highest secret of magic power - Huanghuang Yin. The soul traveled back to 20 years ago, and lived in the body of a young man who went to Huanglong Mountain, the head of the sect, to learn from his master. ——Why is this person's name Qi Xuejian? Or will he be the leader of the righteous path twenty years later?