That Time I Got Reincarnated as a Slime, Vol. 21 (light novel) — Fuse

NO NEWS IS GOOD NEWS…? Rimuru’s disappearance struck Tempest like a violent tremor, but the monsters leading his government have quickly regained their cool. They’re convinced that Rimuru is still alive, and if he returns to find his nation wrecked, there will be hell to pay. For now, they must deal with more urgent problems, and so Benimaru shifts focus to the force of angels led by Deeno that is invading the labyrinth. Among them is Vega, whose corrosive abilities prove to be a worrisome threat—that is, until two jet-black figures step in…