The male protagonist's path to becoming an immortal, he meets the female protagonist in the academy. Stages of cultivating immortals: body training → spirit gathering → elixir formation → golden elixir → Nascent Soul → becoming an immortal → mysterious immortal → golden immortal → transcending tribulations → becoming a god → god king → god respect → god emperor. Each level has ten levels of heaven. Only those who reach immortality and first reach god are the three stages before, middle and last.
Purpose: Cultivation of immortality