Among the universes of this dimension, there is a universe that contains a world where there are beings known as Pokémon living with humans.
Pokémon are living beings with powers that are wondrous and powerful. They are all around this world, from the land, sea and air. The things that this creatures lack is an intellectual mind as most Pokémon act on instincts and self-preservation. This is why humans made devices known as "Poké ball" to capture them and grow bonds with them to make them stronger. Pokémon are creatures made to be friends with humans and, together, they co-exist to strive together and grow as when Pokémon are left alone in the wild, they can die or starve to death because of the laws of survival.
However, there are also humans who abuse the powers of Pokémon for personal gain or for chaos. These people came in groups and are not working alone. Team Rocket, a mafia organization, using Pokémon to get money and is one of the toughest organization in the world; Team Magma, an organization bent on expanding the land masses and opposes the next organization; Team Aqua, an organization bent on expanding the sea masses and opposes the previous organization; Team Galactic, an organization desires to reset the entire space; Team Plasma, those who deceive others for the liberation of Pokémon and humans for them to dominate the world; and Team Flare, create a genocide for the world to be perfect.
Luckily, young men and women appeared when they started their adventures and stopped the organization before things can get worse. Their bravery and trust to their Pokémon partners is enough to wreck their evil deeds and change them. These people are: Red Ketchum from Pallet Town, Ethan Gold from New Bark Town, May Sapphire from Littleroot Town, Dawn Platinum from Twinleaf Town, Hilda White from Nuvema Town, Nate Lack from Aspertia City, and Serena Leaf Yalestia from Vaniville Town.
What are the Pokémon used to achieve these heinous crimes? It is through the use of special Pokémon known as the "Legendaries". Legendaries are very powerful Pokémon that they are almost equal to gods. They can resurrect the dead, expand the sea and land masses, control the very fabric of the astral, and govern life and death. They are mostly the gods of the world, but the true god is the Alpha Pokémon named Arceus.
In this world, there also objects known as Megastones. Megastones are powerful objects the can make a Pokémon undergo a process called Mega Evolution. In this form, a Pokémon becomes more powerful that matches a Legandary's power and undergo changes to their overall appearance temporarily. However, even though the power it gives is powerful, the power can also make Pokémon lose their minds and giving them pain for bloodlust. The only solution for this is for the bonds of a trainer and Pokémon as the Pokémon and trainer together is required to undergo this power and there is a chance that both of them can feel the pain. Because of this, Mega Evolution became banned in all regions on official battles because of the effects it can do to the trainer and Pokémon.
Megastones...powerful items that need a Pokémon and a human to be used...who created these things? It is unknown but what happens if that item becomes an organ that holds a Pokémon's life? The scars of the incidents' results, what are they? Or what caused those incidents to occur? Or who is responsible for them to occur?