The first book is not called Immortality Classics in the strict sense. The identity of the protagonist is a mystery, but the master of the protagonist is an immortal and very strong. The second book is well written at the beginning. Although it is a routine, every climax will make you explode. I don't recommend it after reading 2500 chapters. The rest of the writing is very difficult.
People with the surname Wen also occupy a place. Cultivation of immortality is not about fighting and killing. It also involves technology, civilization, and life. If you don't accept it, you have to fight.
A small, low-scoring longevity novel, the protagonist's surname is neither Chen nor Li. You guys, after reading those awesome books, you can read this one. Give some comments in the comments.