After the timeless Sword Immortal Lin Yan perishes, his soul transmigrates into a modern high school student. In a city where spiritual qi is quietly returning, he starts cultivating the Immortal Dao from scratch. Using his overwhelming advantage over ancient martial arts, he puts the children of powerful clans in their place, stirs up the struggle between the Martial Suppression Bureau and the Five Great Families, and explores ancient ruins. He uncovers the shocking secrets behind the spiritual qi revival and his death in his past life, and rises to the top as the strongest in the world.