The Great Passage anime isn't just your ordinary "book" making anime. It is a combination of almost everything we encounter in real life. The awkwardness, the passion, and the precision on how we meet our special someone is delivered on this novel. To be honest, I already watched the movie of this novel 2 years ago and watching the anime adaptation still gives me the laughter and chills that I'm always looking for. Too bad I don't have a hard copy of the original novel. I would like to have one though someday and add it to my collections.
For a second season, I would like the anime adaptation to have one. A trailing season would be a good option but I don't know about the materials because it is already solid as rock that the novel will stay as it is. With no followup content from the novel then there won't be enough materials for trailing seasons.