Aoi Asahina from Dangan Ronpa!
Yes, you heard it here first folks! The talented swimmer has decided to travel Kalos to help reach her goal! What is this goal you may ask? Well, the other girls always had something related to Pokemon to achieve, so as to do something completely new and edgy to help keep maintain the audience, Aoi Asahina's goal will just be her trying to lose weight! Travelling with Satoshi will get her to see how his Pokemon train, and thus copy those training techniques and become thinner! There will also be a bit of romance between Asahina and Satoshi, where Asahina tries to grab Satoshi's attention and love, but needs help from a love expert who is also travelling with them to get close to him. Asahina will have no Pokemon with her, but she'll be befriending them and use her athletic skills to help in certain episodes.
When the development choice came to who to use as a female lead, it was deduced that the female characters in XY did not look good enough for eye candy purposes, and so, instead of creating an original character for the anime only, a collaboration with Spike Chunsoft was made to allow the use of Asahina in the Pokemon world. "Pokemon is an extremely popular franchise that can help spread the word of Dangan Ronpa and make it more popular." said a Spike Chunsoft executive. "Asahina is a character loved by many, and one that also fitted the requirements needed.". Apparently, they also wanted to have the new female lead be a combination of the previous four leads. Asahina has Kasumi's love of water, Haruka's good looks, Hikari's desire to become more appealing, and Iris's athletic behavior.
It is hoped that Aoi Asahina will be loved by many in the show, having become the favorite of all the people working on the show. In Dangan Ronpa, she is 15, so Satoshi has been aged to fit with her.