One Person, One Umbrella and One Sword, I Will Protect This World

After a war between gods from two realms in ancient times, the gods fell and the gods disappeared from the world. In the development of the world, powerful beings such as aliens and abnormal beings have appeared. There are both Taoism and Buddhism, as well as all kinds of innate aliens. As time goes by, a new war comes... Luo Xuan: Born from heaven and earth, raised by his adoptive father and adoptive mother; his greatest superpower is that he cannot die; he is extremely intelligent and can learn other people's martial arts and superpowers just by looking at them; he absorbs the energy between heaven and earth all the time; he joins the Ninth Bureau of National Security and reveals the truth of the world step by step...