Claymore is based on a typical good vs evil plot. Demons (or Yoma) live hidden amongst humans killing them to feed & Claymores who are part Yoma, engineered by a secret group to protect the humans.
After wacthing 13 episodes so far i’m hooked. Not just because it features hot blondes wielding huge swords, it’s the sheer brutality & compelling story thus far. Sadly enough, I cant get into the plot without spoiling the action. ( It gets REALLY REALLY good around episode 8).