Cocoa is one of the characters of the day in Arriving in Style!
Like Paris, she is also a Pokémon stylist. She entered the Hearthome Collection contest along with Dawn and Ash. Cocoa is a little conceited and somewhat of a snob. She yelled at Dawn's Buneary because the latter wanted to touch her dress. She also made fun of her.
In the contest Cocoa gave an impressive show with her Mismagius. However Paris's teacher, Hermione, was not impressed. She made it into the top three along with Ash and Dawn. Much to her dislike, she ended up in third place while Dawn won the prize.