You'll be wandering around the Kanto region, when you reach a city called "Viridian City", which is a very quiet and calm city. There's a pokemon center in there, so you enter to it in order to heal your team. As you went inside, you see a girl with a...tail? She seems to be healing her Pokémon team too. She looked alike a human but with with a heart-shaped purple tail and purple horns. She doesnt seems to notice you, but she doesn't seems like a treat.

May you approach her?