The Supreme Saint

There are always many regrets and unknowns in a person's life. Life is short, and if you can live another life, you are much luckier than others. An ordinary person traveled to a fantasy world and got a second life, but his talent was mediocre. He also got a fairy book, which recorded most of the knowledge in this world. The world described in the book is so wonderful and mysterious that I can't help but want to take a look, especially some unknown areas that are not recorded in detail in the book, which makes me want to understand them thoroughly.