Aria - Slice of Life, Sci-Fi, Fantasy Aria is a three part anime. The first part introduces the characters, the second introduces the world. Gorgeous art work, and Aria itself is well thought out. Mostly an episodic series. It is recommended to start on Aria the Animation.
Rensou no Aria - Aria had lived in the Catholic orphanage since her parents death, but when the orphanage was threatened with closure, it was saved by a mysterious benefactor who began sending her gifts. On her 16th birthday he sent her an engagement ring and a body guard named Canon. Suddenly her life is chaos with people trying to kill her left and right. Will Canon be enough? And does he have his own agenda?