Not much to say about the fourth Okiraku Ryoushu no Tanoshii Ryouchi Bouei novel, as it’s much the same in atmosphere to the prequels. So if you greatly enjoyed the character behavior up to this point it should continue to deliver. Personally though, the titular optimism is starting to wear on me.
The tenth Kuitsume Youhei installment feels phoned-in. It’s not bad exactly, but just comes across like filler. It seems to only exist as an excuse to inform the protagonists of the missing dark gods’ names… but you could’ve just had the known dark god list them off and not have bothered with this otherwise pointless trip.