Ugh, been a while since I've last read this manga, so my memory is a bit fuzzy. Looks like a paused after the end of the arc with King, rather than in the middle of an arc, so that's good.
This volume opens with a flashback of Shiba telling how he gained the Holy Bring / Rave, and it was pretty cute. I was "moved" when Shiba received the stone from the Knights.
Let has joined the team, and this arc introduces Ruby, so we're closer to a full party!
The manga still feels rather a lot like One Piece crossed with PS1 Final Fantasy games. Interestingly, we get a gang of horror-themed enemies (a ghost/gorgon chick, a werewolf, and a Frankenstein's creature, led by a dude with a Jack-o'-lantern mask), about six years ahead of Thriller Bark in Oda's manga. So, good for Mashima, I guess?
This volume is somewhat "quiet," but there's a fair bit of setup. The fall of Demon Card has allowed a handful of smaller crime organizations to become more prolific, including the aforereferenced Doryu Ghost Attack Squad. Other teams, Onigami and Blue Guardians, haven't been shown to us yet, but will be major players soon. We are also teased with a new strong enemy, unrelated to this trio of gangs, but whom may be used as a weapon against them (not unlike how the Shichibukai work in One Piece, actually...). This dude is, I think, Lucia Raregroove, who iirc is the next major enemy in the Symphonia Arc (which we've entered with this volume).
"Gas Butt Triple Ecstasy!!"