@Geezer-Weasalopes - 23-24 are a bit like the sugar route volume where they head off away from everyone to a new land. Also a bit like 22, but without the silly goddess avatars to liven things up. Tenion says so too.
They were less interesting to me than prior volumes though partly because of 23 mangling the first half of the stoy.
From the ending of 24 they will be heading back to the normal Shiga/Saga haunts in volume 25.
I enjoyed 24, but if you're struggling to stay interested you could skip 23-24 and not miss much.