Traveling Across All Realms, the Fairy Came to My World

Liu Bai, a retired otaku. One day, he suddenly traveled through time, but not only did he not become the protagonist of the novel, he was also tied up and used as a training consumable by an "evil" saint in this world. Is this a mistake? In order to protect himself, he had no choice but to use all his strength to complete the task and finally return to his original world with the help of the travel notes of life in all worlds that appeared in his mind. But at this time, there was an uninvited guest who came to his world together. "Hey, where is this strange, dirty, and small place! Outside of that transparent wall, why are those mortals with no cultivation at all controlling fire, controlling iron boxes, transmitting sounds through the air, and practicing the methods of immortals!" "Well, I said you ascended, do you believe it? The upper world is like this..." Liu Bai was dumbfounded as he watched the saint who cultivated immortality come to his seemingly ordinary world. This was the first collision between classical cultivation of immortality and reality. But he didn't expect that this was just the beginning...