Infinite Dendrogram novel Volume 8 features story by Sakon Kaidou and art by Taiki.

Having maxed out his Paladin rank, Ray considers what job to take and level next. As he does so, he hears of a job that was newly excavated alongside an ancient ruin in Altar's Quartierlatin County — an area bordering the Dryfe Imperium. As it happens, Ray already meets the conditions for the job, and it suits him well, so he wastes no time going out to make the switch. But of course things are never quite so simple... Along the way, he encounters Azurite — a mysterious masked swordswoman. There was simply no way Ray could've known the far-reaching political implications of his venture to the ruins...