Gojika

Gojika is the Gym Leader of Hyakkoku City's Gym, known officially as the Hyakkoku Gym. She specializes in Psychic-type Pokémon. She gives the Psychic Badge to Trainers who defeat her.

Gojika is pure-hearted and deeply empathetic. She holds a great deal of responsibility, foretelling her psychic predictions in a precise manner as to avoid any confusion. She often receives vivid visions of the past and future, causing her to flux in and out of a psychic state. The Hyakkoku Gym also serves as a school for other Psychics, training them to reach their full potential.

(Source: Bulbapedia)