Jerome's Squad (consist of Robert, North (Noss), Rocca, Heuler and their leader Jerome) is a pack set on killing the mutant dog, known as the monster. Originally, they are the trained dogs who were used for guarding the top secret labratory.; then one fateful day, the monster escaped from the lab. 16 dogs from the total of 50 guard dogs were chosen to track down the monster. The second incarnation of Jerome's squad only appeared in the anime. (Second Incarnation of Jerome's Squad in anime only)