What Is the Meaning of Cultivating Immortality?

A drug dealer who can't even feed himself can suddenly encounter "Tianqi" one day and stumbles into a different world. He was taken for an assessment at the beginning of the game, and he passed the assessment with flying colors. A man is racing all the way, struggling all the way, and cultivating and upgrading to immortality has become everything in his life... One day, he suddenly discovered why he was cultivating immortality, and the truth ahead became confusing...