Kanna is an Ice-type Trainer and the first member of the Indigo Elite Four.

Kanna's skills are highly regarded and she makes frequent appearances in the media, though she is dismissive of her fame and the praise of others. Instead, she mentors up-and-coming Trainers and hosts her own lectures. In particular, she teaches Trainers to find their inner strength and value the connection they have with their Pokémon.

(Source: Bulbapedia)