As a time traveler, Gu Yu was unqualified.
He didn't want to show off his skills on the new map, show off his ambitions, and become a winner in life.
As a book wearer, Gu Yu was unqualified.
He did not rely on knowing the plot to turn around and reach the top of his life.
Because he just wants to go home, to his modern home. There are his most important relatives there.
So, this is a story where the protagonist tries his best to get home to his mother (crossed out).