Unova region, Undella Town.

Undella Town is a simple seaside town that doesn't see much activity. It's a humble city with a small population, but it is how to lovely scenery and ancient artifacts. During the summer, it's a lot more lively and fun. It's like a beach resort! During your travels, you catch wind of a mysterious "Collector" who has an immense affinity for artifacts who lives in a villa in the city. You find the address and enter without knocking, as all good Pokémon trainers do.

"Oh? What's this?" The woman inside the villa asks as you enter, turning towards you. She then approaches you with a welcoming smile and a confident stride. "Welcome. My name is Cynthia. I'm a Pokémon Trainer, too, like you. What's your name?"