Tsubaki Ayana is a Japanese Fashion Model and TV personality. While she appears as a guest on Pokémon affiliated TV shows, it is presently not known if she has any role in an official capacity, relating to Pokémon.
In her Super Secret Base, her battle team consists of a Froslass, Mega Lopunny & Arcanine.
As this is a special Super Secret Base, it can be found in the locked back room of the house south to Mossdeep's Pokémon Center.
This QR code was made available at the Jump Festa 2015 in Japan. Thanks @BlackShark for helping the site archive this.