In the modern days, a girl named Elena looked like any other person. But little did society know, she's a modern day assassin. Not a hitman or a hired killer, but a follower of the Assassin's Brotherhood. For hundreds of years, the assassins and their nemesis, the Knight Templars, have fought. Their fight has always been surrounded by the Pieces of Eden, powerful weapons that will end any attempt of peace. But in the 21st century, the assassins has grown weaker. The Templars easily adapt with the surroundings, such as building a company named Abstergo Industries. It was up to the Brotherhood to stop the vicious plans of the Templars but in the rising power of the Templars, can they?