She approaches Black and White when White is out of the hospital in Nimbasa City. She is extremely well-informed, knowing exactly where in Nimbasa Marshal is and why; she is also aware of the plans of Nimbasa's higher-ups. She takes Black and White to the Battle Subway, where Marshal and Alder are.
Chris seems good-natured and generous, offering Black and White free food and information, but has a definite intelligence behind her smile. She also seems knowledgeable about Pokémon, understanding the strategy Marshal uses in his battle against Alder.
Chris is a fan of White's, even asking for her autograph, because she loves White's invention of the Pokémon Musical.