Serara, a young female member of the guild "Crescent Moon Alliance", is trapped by mysterious men in the northern city of Susukino and needs help.  Shiroe and his friends travel to reach her.  Annoyed by the game's tasteless food, they travel northwards, and go inside "the depths of Palm", a crumbling series of old mining tunnels.  There they meet creepy monsters...
They're low-level monsters, 
but they can spread plague.
Rattenmensch
Son de bajo nivel, pero pueden causar plaga.
Ils sont faibles,
mais ils filent des maladies.
Sono mostri di livello basso,
 ma possono diffondere la peste.
Embora tenham level baixo, 
se espalham como praga.
Уровень хоть и мелкий,
но эти гады разносят всякую заразу.