Download on comic.iowl.jp

[Mhzpo]

I was wondering if it was possible to find a way to download manga on Comic Festa (comic.iowl.jp).

The image aren't split into several parts but mixed into a puzzle (as you can see from the following link: https://i.imgur.com/ayHvKDp.jpg).

I can't find any solution for that site online.

Thanks in advance