The five most popular story-related questions people ask about The Librarians: The Next Chapter, Season 1, excluding the overall plot and ending, are:

1. Who is Vickram, the new Librarian, and what is his background and personality like?
2. How do the new characters Lysa and Connor compare to the original series' Cassandra and Ezekiel, and what roles do they play?
3. What is the role and characterization of Charlie, the new Guardian, and how does she differ from previous Guardians?
4. How does the show balance its monster-of-the-week format with the magical elements and humor?
5. What new magical artifacts, mysteries, or adventures are introduced in this season?

These questions reflect viewers' interest in character development, the show's tone and style, and the new story elements introduced in this continuation of the franchise.