King Eutanasi of Semperesse is caught off his guard when a fortune teller speaks of the Kings future. He is to fight against a powerful group of humans. A battle he can't win. The superstitious King believes every word and will create everything to prevent it. The new addition to his army is fifteen teenages with almost immortal fighting skills. He decides to do everything in his power to make them stronger, even if he has to change their DNA. How will the battle go? Will the teenagers survive? This is their story, in KILLING A GEMSTONE.