Into the Deepest, Most Unknowable Dungeon manga volume 8 features story and art by Kakeru.

Kukoro is brought to the Orc Empire as breeding stock! There she meets Scion, a heretical scholar, and learns the details of goblin technology—can she escape with the intel, and does she even want to? Meanwhile, Aro regains her confidence after the success of her bola shooter, and we meet Sei, the “Hero of the Holy Sword' who wields miraculous power and speed. Jean and his party set out once again into the untraveled lands of the Dark Continent, to go balls deep into the strange and unknown terror of the war between man and orc!