Ash and Serena are finally thirteen so it's time for them to date and they also achieved their dreams like Ash became a Pokemon Master in Kanto while Serena became the Kalos Queen (Author's Note: This was supposed to be revealed in the prequel but didn't make it). Now, they will meet up in Kanto and Serena will stay there for a while.
"Ash!" Serena shouted.
"Serena!" Ash shouted.
"Long time no see." Serena said.
"Yeah, it's been so long that your hair had grown." Ash teased.
"I still look cute, right?" Serena asked sadly.
"Of course you do! Short or long hair? It doesn't matter." Ash answered.
"Thanks..." Serena blushed and her face lightened up.
"No problem! Hey, congratulations for becoming the Kalos Queen." Ash congratulated.
"Thanks! Congratulations for becoming a Pokemon Master." Serena thanked.
The two of them left the airport and talked and laughed while walking to Ash's house.
"Um... Is it okay for you to let me stay at your house for a while?" Serena asked.
"Don't worry, it's okay. My mom suggested it anyway." Ash answered.
"Alright." Serena said. The two of them arrived at Ash's house. Then Mr. Mime help Ash and Serena with their things and talked to Delia.
"Oh hi, Serena. I guess this is the first time we see each other in person." Delia winked.
"Hello. Thanks for letting me to stay with your house for a while." Serena chuckled.
"No problem! Ash told me about new things about you. Like you're now his girlfriend!" Delia teased.
"Um..." Serena blushed.
"Mom!" Ash shouted with embarrassment.
"What, it's true, right?" Delia asked.
"Well, I guess it's true." Ash blushed.
Delia laughed. "How about you two visit Professor Oak at his lab?" She suggested.
"Sure!" Ash and Serena answered.
Later at Professor Oak's lab...
"Hi, Professor Oak!" Ash greeted.
"Hello, Ash! What brings you to my lab?" Professor Oak greeted.
"This is my girlfriend, Serena. She's the Kalos Queen and we came here to visit you." Ash said.
"It's a pleasure to meet you again. I'm pretty sure you won't remember me but I went to your summer camp once when I was little.
"Oh, well make yourselves at home." Professor Oak said while guiding Ash and Serena around the room. "Now please, take a seat."
"Thanks!" Ash and Serena said while sitting at a couch.
"So Serena, you're gonna stay here for a while, right?" Professor Oak asked.
"Yes." Serena answered.
"Here, have a Kanto pokedex. You might see some new Pokemon you didn't know yet." Professor Oak said while lending Serena a pokedex.
"Sure, thanks a lot!" Serena said while receiving a pokedex. Gary then walked into the room and saw Ash and Serena.
"Hey Gary!" Ash greeted.
"Hey, Ash." Gary greeted. He then saw Serena. "Hey... Have you went to Professor Oak's summer camp?"
"Yes." Serena answered.
"I knew it. You're the girl who Ash saved and became friends with him. So, Ash... Is she your girlfriend?" Gary teased.
"Yes." Ash answered.
"I kne- wait, what?! Are you serious?!" Gary asked in surprised.
"Yes, why?" Ash answered.
"Because you're not the type of person who has a girlfriend! And worst, you manage to get one before I do! Hey you! Is it true?!" Gary said while pointing at Serena.
"Yes..." Serena answered.
"I can't believe it! That's it, Ash! Let's have a battle!" Gary said.
"Sure, but why?" Ash said.
"Just because, okay!" Gary answered. The two battled and Ash won. "Dang it, Ash!" After the three of them talked and chat for a while, Ash and Serena goes home.
"So Serena, where do you want to go next?" Ash asked.
"Hmm... How about introduce me to your Kanto friends then we can visit Professor Oak's summer camp." Serena answered.
"Sure, that's a great idea!" Ash said.