Call us what you want. Hit-men, assassins, contract killers, monsters, murders.. it's the only thing we know ~~~ Adrian Pierce was born into a family of assassins, trained to kill since the age 5 and became a pro by the age 9. Adrian was known to be protective over his younger sister and would do anything to make sure she was safe, even kill his own parents... Serena Pierce, being three years younger than her older brother Adrian had to watch his training before she was of age. Serena looked up to her brother and was eager to train with him but, little did she know what she was getting into. The sibling's had a hard childhood, being pushed in harsh conditions and trained ruthlessly until they broke, before doing it all over again. The two learned from young age it was "kill or be killed." their parents didn't hold back because of their age. Their parents knew the kids would be an advantage to their missions and planned to used them until they could go on missions by themselves. The main goal was to make them the best of the best, an unbeatable team with nothing but... A killer Instinct.