Janine is the new Gym Leader of the Fuchsia City gym. She is the daughter of the past Gym Leader of Fuchsia City, Koga, who was promoted to a position in the Elite Four. She gives out the Soul Badge and she specializes in Poison-type Pokémon.
Although Janine only appears as a Gym Leader in Generation II, she also appears in Pokémon FireRed and Pokémon LeafGreen in the Fuchsia City Zoo. She states that her father, Koga, is teaching her how to use Poison-type Pokémon.