Why would you want the female's name to sound similar to Yveltal? Why not name the male MC Xavier or something? --- "I see the way you look at him. I'm a man too, ya know? I go pee pee standing up!" http://i.imgur.com/DtiOyo0.png
they should just be called x and y. last humans on earth living in a pokemon run world. They have to rise to the test and be the best there ever was. Catching them will be the real test training them will give them cause. X (or Y if you are a girl) will travel across the land search far and wide. They use the power they have inside to find their friends and the other remaining person so they can continue the human race.
Or we can just go through a gym to get 8 badges again and beat the elite 4. woohoo --- ---Protoype003