The 'Solo Leveling free novel' is mainly about a guy's adventure in a world with dungeons and monsters. He begins as a nobody in the hunter community. However, things change when he gets an unusual power - the ability to level up on his own, which is quite different from other hunters. This new power sets him on a path of facing increasingly powerful foes. Along the way, he also meets different characters, some become his allies, while others are his enemies. The story is filled with action, suspense and a lot of character development.
The Solo Leveling manga has a considerable number of chapters. But the exact length can vary depending on how you measure it, like in terms of page count or story arcs.
I don't have the exact figure for the number of chapters in Solo Leveling off the top of my head. But a quick online search should give you the information you need.
It's hard to give an exact number. The number of Solo Leveling novels can vary depending on different editions and releases. You could look for information from the author's official website or reliable literary databases.
They fill in the gaps. There are many parts in the main story that left us wondering about certain characters or events. The side stories answer those questions, making the overall narrative more complete.