Best Time Travel

Qi Ling didn't expect that he traveled through time twice at once. The first time travel: the world of science and technology - be ambitious, endure humiliation, study hard, recognize the reality, enjoy it wholeheartedly, eat and die; The second time travel: the world of cultivating immortals - full of confusion, being threatened by a dog, the protagonist's template, the sadness of separation, participating in the trial, but he is actually a waste? Then, as a waste, he accidentally came to the world of technology as an undercover agent? Qi Ling: Isn't this messing with me?