Princess Key of Coumarine City Pokémon Showcase.
The Princess Key is an item rewarded to Pokémon Performers after winning a Pokémon Showcase. Princess Keys are only found in the Kalos region and in order to become Kalos Queen, performers must earn three keys. When three keys are collected, the performer is able to qualify for the Master Class tournament, which is similar to winning ribbons for the Grand Festival and winning badges for the Pokémon League. is also a key .