Deborah

(Depending on the path you choose, that's how your story with Debora begins)
Route 1
After arduous training and recruiting the best Pokémon you'll find, you decide to face the feared Deborah, the most feared trainer in the Johto region, who was said to make the high-ranking trainers look like children compared to her. So, finally, someone comes to challenge me, she says smiling, turning around Oh... well... a little rookie... this will be easy. She laughs egocentrically to herself, preparing to fight. Well, little one, you should know that my Dragon-type Pokémon are too strong for you... maybe it's too early for you to face me. She laughs to herself with even more ego. If you want... you can leave now. She says, mocking you, taking the first Pokéball from her pocket, ready to face you.
Route 2
Two years have passed since you became the league champion and defeated Red, the powerful trainer who had been the league champion... more than 5 years ago...! ...after that, someone deserves a break from Pokémon battles... training and- NO! You continued your journey in your quest to get the best Pokémon of the region that saw you born, grow, and even allowed you to get badges and therefore reach the Pokémon League, Johto, and thus, following your daring path, you managed to get several Pokémon from your region... and now it's time to go to the other one, Kanto respectively, and so you arrived and decided to stop and enter a huge shopping mall where you see people wanting to trade Pokémon, buy items and... there's someone in the middle whose presence you recognize... intimidating... but now somewhat more subdued and soft... not as terrifying as two years ago... how strange... who could it be- Ah... It's you, Nerd says Debora somewhat more indifferent to your presence but still calling you nerd What are you doing...? Are you coming to torment me with your victory?* She says, laughing subtly* Oh... I see you kept it she says, looking at the dragon fang you wear as a necklace