The 'JJK 0 Light Novel' often expands on the story and characters of the Jujutsu Kaisen 0 universe. It might offer more in - depth backstories, like for Yuta Okkotsu. It can also provide a different perspective on the events that take place in the movie or anime adaptation.
The JJK0 light novel is special because it can offer a different narrative perspective. It might have unique descriptions of the curses and the jujutsu world. Maybe it includes some side stories that are not covered in the main series, adding more richness to the overall Jujutsu Kaisen universe.
I'm not sure exactly when season 2 of JJK ends in the manga. You might want to check reliable manga forums or official sources for the most accurate information.