In a quiet rural town, the spotlight of a local junior high school football team rests on one player: Ashito Aoi. Known for his unpredictable moves and self-centered playing style, Ashito is the sole powerhouse pushing his team through an important high school preliminary tournament. However, their win streak is short-lived—an opponent causes Ashito to lose his temper and act violently, resulting in his removal from the rest of the game. Without their star player, the team is quickly eliminated from the tournament. Just as he believes all hope is lost, Ashito is approached by a youth team coach named Tatsuya Fukuda who senses potential in him, and Fukuda invites him for tryouts in Tokyo. In an unfamiliar setting surrounded by talent, Ashito must bring out the best of his ability to prove himself and secure what could be a life-changing career.

Pokémon are marvelous creatures that come in a variety of types and sizes, with abilities, powers, and personalities as diverse as they are numerous. Doctor Yukinari Ookido has dedicated his life to studying these fascinating beings, that can be caught, trained, traded, and battled against each other. There's only so much he can do from his lab though. With this in mind, Ookido entrusts two young boys with a Pokémon of their own and a computerized encyclopedia to catalog them. One of them, Green, is brash, passionate, slightly arrogant, and Doctor Ookido's own nephew. The other boy, Red, is equally passionate, and filled with a wide-eyed, mildly naive sense of wonder. Pokémon: The Origin follows Red in his journey through the region of Kanto in his attempt to complete his "Pokédex" by capturing and cataloging all the Pokémon that exist. Along the way he'll discover there's more to himself and his goals than he originally thought. Red will have to put both himself and his Pokémon to the test in special Gyms whose leaders are steps along the way to the Pokémon League, in order to challenge the Elite Four and become a Pokémon League Champion. Aside from his goals to become a Champion, Red has other problems brewing. There are others who capture and train Pokémon for more sinister reasons, with the infamous criminal organization Team Rocket being one of them. If Red can defeat them, fellow trainers, his rival Green, and wild Pokémon all through Kanto, he just may fulfill his own dream, and Doctor Ookido's as well.

Deep in the forest, far from any human contact, there lives a child named Ryouma Takebayashi. He engages in the rather strange hobby of keeping various types of slimes as pets. Furthermore, despite his young age, he has a sturdy physique and good compatibility for magic. All of this is because, having endured much hardship in his previous life, three gods grace Ryouma with a second chance to pursue one goal: savor the wonders of life. After three years of comfortable solitude pass by, Ryouma meets people that will change his current life forever. When he encounters and helps some soldiers tend to their wounded comrade, the group convinces him to accompany them to visit the nearby town's ducal family. Ryouma agrees and soon embarks on a journey to explore the vast world beyond his home. [Written by MAL Rewrite]

Ten years ago, a fairy by the name of Daisy appeared and asked the child Eiji Hoshimiya what his one and only wish was. Although his wish remains a mystery, the consequences were catastrophic. In an event called the "Great Destruction," the world started to fall apart as everything collapsed and countless people died. Now, Eiji is a high school student whose only concern is his sick sister. He does not remember what he wished for; all that he remembers is that his wish caused the Great Destruction. In the years since that event, thousands of other people have also received abilities to make their heart's desire come true. These people called "Orders" are believed to be evil and are hated by the general public. However, some of these Orders are after Eiji's life in vengeance for those that he killed. Will Eiji be able to survive the numerous assassination attempts? And the biggest mystery of all: what did he wish for, and what were his intentions in wishing for something that caused so much desolation? [Written by MAL Rewrite]