Manhuang: I Created the System of Cultivating Immortals

[Traditional fantasy + no harem] In the wild continent, the human race is weak, and a young man walks out of the wilderness! Can't practice? Then create a new system of cultivating immortals! Is the human race weak? Then lead the human race to the top! A war between all races? Let's see how I can suppress thousands of people with one person! Dark invasion? Then go and destroy your dark ancestral land! All the storms in the world are stirred up by me! The human race also rises because of me!