The threat of invasive species is no exception, even in a fantasy world!?

Rokuroku of the Invasive Magical Creatures Countermeasures Division is investigating foreign magical creatures with the newly-appointed Ninin. Rokuroku is overwhelmed by the super-energetic elf girl Ninin, but…? Slimes, Carbuncles, Gargoyles… To save various magical creatures, the Invasive Magical Creatures Countermeasures Division sets out again today!!!