A Nobody's Cultivation in an Infinite World

Some say that never having seen an immortal proves they are superstition. The protagonist would say it is because you are not devout enough; second, because you have not been lucky enough, since immortals cannot be on Earth all the time; and third, even if they offered you guidance, you would not be sharp enough to grasp it. Some do grasp it, but lack the will to act. The gods say that if you still have not awakened after reading this book, they will consider assigning you a task to carry out. After that, you are on your own.

The protagonist cultivates immortality, becomes a god, and reaches sainthood. He grows through the missions created by the gods, then transcends his limits and forges a different path to godhood.