Responses
Yeah, Part 4 should finish the first of two years covered around chapter 55-60. If we figure the second year will take another 50-60 chapters, we're looking at another 4-5 years. Part 5 just started I think, there's like 4 chapters translated so far.
Bottom line tho, we got probably at least 5 more years until the manga is done.

I wish I'm still around when all volumes of the novel get adapted to manga. Hahaha. Not that I'm going anywhere.