The protagonist travels back in time to the Tang Dynasty and becomes Cheng Fei, the son of Cheng Yaojin. Cheng Fei has a sea of books in his knowledge sea, which contains all kinds of books, and the protagonist's body undergoes changes. As long as he reads carefully, he can quickly master the skills of the books in the sea of books. The protagonist is pregnant. Cheng Fei has mastered many skills over the years. However, Cheng Fei has not exposed too much in his two lives and has always kept a low profile!
