Personally, it took me a year to finish it bc Im a really slow reader, and english isnt even my first language so I had to search the meaning of words I didn't know
Its 550 chapters. Theyre shorter than book chapters, but it depends on what kind of reader you are. It took me around a couple months to read it, and thats probably the pace you'll be at if youre a more casual with reading.
An estimate? Probably about a week or two if youre a fast reader and have a lot of free time. If not a couple of months to a year.
Novel readers I'm gonna read the novel before reading this but how long did it take you to finish? I know it's a long read but curious as to the estimate and how to spread it out?