It is not complete, far from finished. Apparently, the manga artist only uploads 1 chapter from the current volume once a month or every two months. That is quite slow.
Moreover, the artist of part 4 volume 1 is different. One artist is working on part 3 and the other on 4 at the same time. That is indeed confusing. In my opinion It is best to read the novel of part 3 volume 3. Part 3 has a total of 5 volumes.
It is not complete, far from finished. Apparently, the manga artist only uploads 1 chapter from the current volume once a month or every two months. That is quite slow.
Moreover, the artist of part 4 volume 1 is different. One artist is working on part 3 and the other on 4 at the same time. That is indeed confusing. In my opinion It is best to read the novel of part 3 volume 3. Part 3 has a total of 5 volumes.