Re:Monster manga volume 10 features story by Kogitsune Kanekiru and art by Haruyoshi Kobayakawa.

To satisfy his need to train and eat, Apo-Rou has ventured into the briny depths of the Age of the Gods Dungeon! While traversing a waterfall where one slip would result in instant death, he defeats boss after tasty boss! Now, the abyssal deep is within his sights, but is Apo-Rou the hunter or the bait? Against this dungeon boss, it's eat or be eaten!