While heading to Mahogany Town, Ash and co. are lost in a fog (literally) and are met by a beautiful girl named Lokoko and her Ninetales who invites them to a mansion that belongs to Ninetales' previous owner. After hearing that Lokoko has been living alone for some time, Brock asks her to marry him, which (to Ash and Misty's surprise) she says yes. Why would a girl willingly marry Brock, and what is the secret behind the mansion?
Brock says he once owned a Ninetales, but this is wrong on two counts. First, Brock himself stated that the Vulpix he got from Suzie was never really his and second, it never evolved into a Ninetales anyway.
Ash looks up Ninetales in the Pokédex, despite having encountered several before.