That Time I Got Reincarnated as a Slime Light Novel 13

The Empire deploys a vast army over 900,000 soldiers strong to invade theForest ofJura. In response, Ramiris evacuates Tempest's inhabitants into theDungeon forsafety. While Primal Demons Testarossa and Ultima duke it outwith the Empire on thefront lines, the rest of the imperial army attempts toinvade Ramiris's labyrinthineshelter.

Little do they know, however, that theonly thing they'll find there is adevastating bloodbath courtesy ofTempest's own mighty forces...