Jeff the Killer (fanfiction love story)

Nilya's a 16 year old girl, who lost most of her memories, is willing to remember and started her life as a weapon for the government. Jeff's also a 16 year old boy who lost all of his memories and started his new life as an assassin. These two bumped into each other during an assignment they had. They didn't know each other, but something tells them that they did. Will they fall in love with each other or will they become enemies for life.