Unscientific Cultivation of Immortality

An ordinary young man in the city suddenly traveled to the world of immortality due to an accident. Golden elixir? Nascent Soul? Isn't this something that only exists in novels? System? Can cultivating immortals be played like this? Hahahahaha, it's too simple. I am destined to become the man who cultivates immortality! Let's see how the protagonist becomes the strongest through his own "efforts" step by step. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.