In 2025, global aura will quietly revive. When Lin Yuan, an ordinary programmer, died suddenly while working overtime, he accidentally activated the ancient inheritance "Taixu Xuanzhang" in his body and was reborn as an urban cultivator. When the ancient spiritual practice system collides with modern scientific and technological civilization, and when the legendary demon quietly sneaks into the reinforced concrete forest, Lin Yuan practices in secret in the bustling city, punishes evil and promotes good, and gradually reveals the shocking secret behind the revival of spiritual energy. This is a story about a mortal seeking immortality in the world of mortals. It is also a battle for survival at the turn of the old and new eras.