After participating in the Johto League, Satoshi decides to begin anew in yet another journey; this time by himself and Pikachu, in the land of Houen. Though he isn't alone for long, as 10-year-old Haruka (whom dislikes Pokemon, but just wants to come along to see the world) travels with him after Pikachu destroys her bicycle. Satoshi also meets up with his old companion, Takeshi, and Haruka's younger brother, Masato. Together, they travel along in Houen, battling Gym Leaders, entering Contests, and other events on the way to the Houen League. (Source: ANN, edited)

Following the end of Satoshi's Hoenn journey, he travels to the Sinnoh region for his next adventure en route to becoming a Pokémon Master. Immediately upon arrival, Team Rocket makes another attempt to snatch Pikachu, only for it to fail once again. However, Pikachu has fallen deep into a forest and it's up to Satoshi to find him! Along the way, he reunites with Takeshi—a Pokémon breeder with whom he has traveled through many regions—and meets his soon-to-be rival, Shinji, a power-hungry trainer who cares little for his Pokémons' feelings. Still in search for Pikachu, Satoshi notices a powerful electric attack in the distance and heads toward it to find Pikachu with Team Rocket and Hikari—a novice trainer aiming to be the top Pokémon coordinator. After foiling Team Rocket's plans, Satoshi reunites with Pikachu and Hikari joins the group. And thus, Ash and his friends begin their journey through the exciting land of Sinnoh. [Written by MAL Rewrite]

After his mother wins a free trip to the islands, Pokemon trainer Satoshi and his partner Pikachu head for Melemele Island of the beautiful Alola region, which is filled with lots of new Pokemon and even variations of familiar faces. Eager to explore the island, Satoshi and Pikachu run wild with excitement, quickly losing their way while chasing after a Pokemon. The pair eventually stumbles upon the Pokemon School, an institution where students come to learn more about these fascinating creatures. At the school, when he and one of the students—the no-nonsense Kaki—have a run-in with the nefarious thugs of Team Skull, Satoshi discovers the overwhelming might of the Z-Moves, powerful attacks originating from the Alola region that require the trainer and Pokemon to be in sync. Later that night, he and Pikachu have an encounter with the guardian deity Pokemon of Melemele Island, the mysterious Kapu Kokeko. The Pokemon of legend bestows upon them a Z-Ring, a necessary tool in using the Z-Moves. Dazzled by his earlier battle and now in possession of a Z-Ring, Satoshi and Pikachu decide to stay behind in the Alola Region to learn and master the strength of these powerful new attacks. Enrolling in the Pokemon School, Satoshi is joined by classmates such as Lillie, who loves Pokemon but cannot bring herself to touch them, Kaki, and many others. Between attending classes, fending off the pesky Team Rocket—who themselves have arrived in Alola to pave the way for their organization's future plans—and taking on the Island Challenge that is necessary to master the Z-Moves, Satoshi and Pikachu are in for an exciting new adventure. [Written by MAL Rewrite]

Satoshi and Pikachu have arrived in Miare City of the illustrious Kalos region to capture more Pokemon and continue their journey towards becoming the very best. Meanwhile, a genius inventor named Citron and his little sister Eureka wander the city when they run into Satoshi who quickly challenges them to a battle. However, they are soon caught up in a dangerous incident when Team Rocket, following Satoshi into Kalos, cause a Gaburias to rampage through the city. Far away in the quiet Asame Town, a young girl named Serena slogs through daily Sihorn riding practice at the behest of her mother, a professional Sihorn racer. After practice, she sees the events unfolding in Miare City on television where she recognizes a boy from her childhood. Having left a significant impact on her life, the sight of him stirs in her a desire to meet him again; and so, Serena sets off to Miare City, determined to find the boy from her past. Pokemon XY follows the group as they travel throughout Kalos in pursuit of their ambitions—Satoshi challenging Pokemon gyms, Citron learning from Satoshi, and Serena searching for what exactly her dream is. Along the way, they meet new friends, face new rivals, and continue to thwart Team Rocket's schemes, all the while discovering a little about the mysteries of mega evolution. [Written by MAL Rewrite]