Cultivation of Immortality, Starting with a Duel with the Old Man in Red on a Rainy Night

Wei Xuan, a hidden dragon in the world, mysteriously disappeared after becoming famous for killing top-notch masters with swords at the age of fifteen. The world's people don't know the difference between immortals and mortals, and their spiritual roots are cut off. A bloody feast called "Ascension to the Immortal", in which the beauties regard the mortal world as delicacies. In the desperate situation, Wei Xuan wields his sword towards the immortal, and cuts out a sharp edge aimed at death... But it was just a futile struggle. A mortal who is accidentally involved in the world of immortality, where will he go? (Qi training, foundation building, Zifu, golden elixir - Xuanjian-like system) (If you start as a mortal, but if you are a genius, your subsequent practice will not be slower than those with top qualifications) (Protagonist positioning-Sword Fairy)