It's been two years since Team Rocket was defeated for good, and months since Ash confessed his love to Serena. The young couple are now Research Fellows with their new friend, Goh, for Professor Cerise in Vermillion City.
Meanwhile, Ash's rival, Timothy, and his partner, Electchu, learn of the Galar region shortly after winning the Hoenn League, and decide to compete in the region's Pokemon League. When they arrive at Galar, they bump into their friend, Coovers of the International Police, who is working on a case for Professor Magnolia. She claims that Chairman Rose is attempting to prevent an energy crisis by using the power of a Legendary Pokemon named the Darkest Day a.k.a. Eternatus. The chairman is aware that if Eternatus's power cannot be contained, it will cause Pokemon to Dynamax and rampage, destroying the Galar region, but he cares little about the danger.
Unfortunately, the International Police can't do anything without proof, but then Coovers comes up with a plan to use Timothy's accomplishments as a trainer and his role in stopping Team Rocket to gain Chairman Rose's attention, earn his trust and ultimately lead Timothy to Eternatus, thus getting the proof they need to stop the chairman's dangerous plan. So, with their new companion, Gwen, Timothy, Coovers, and Electchu travel through the Galar region as Timothy competes in the Gym Challenge to impress Chairman Rose.
But as the mission goes on, love is in the air. Coovers has developed a crush on Professor Magnolia's granddaughter, Sonia, who may have feelings for him as well. At the same time, Timothy finds himself stuck in a love triangle. One of Chairman Rose's most trusted minions, Ezria Markenel, has developed feelings for him after hearing of his deeds in defeating Team Rocket. At the same time, Gwen begins to adore Timothy, too. Will relationships bloom? Will hearts be broken? And will Chairman Rose be stopped before it's too late?
Amourshipping Story - (AshxSerena)
Ash begins his training for the World Coronation Series Tournament. The winner of that tournament gets the honor of battling Leon for his title of World Monarch. He still misses a particular honey-blonde female companion from Kalos and wonders if he will get the chance to meet up with her again. As the tournament approaches, Ash meets up with many familiar faces who will be at the World Coronation Series Tournament. Will they be there to cheer him on or will some serve as rivals that will be obstacles on his path towards winning the entire tournament?
Will Serena chase after Ash or will Ash chase after Serena? What happens when they reunite?