Fantasy: I Picked up the Story Script at the Beginning

Lu Chen was originally an ordinary college student in Blue Star. His greatest pleasure was reading novels. It's a pity that I didn't look at the almanac when I went out and got lucky. When he came to the world of cultivating immortals and wanted to have a dream of riding a sword and riding the wind, and lying drunk on the lap of a beautiful woman, a book called "The Path to Immortality" fell from the sky. It tells the story of the protagonist Ling Xiao, who started out in a miserable life, suffered bullying, rose up against all odds, and finally gathered the most stunning beauties in the world, won all the top inheritances, quelled the catastrophe of the continent, crushed all the geniuses, and finally ascended to immortality. As for Lu Chen? No, it's not mentioned in the book. But, now that we've traveled through time, shouldn't the protagonist be replaced?