"About a hundred years ago, Desert City was nothing like the prosperous place it is today. It was covered in yellow sand, and the harsh environment made life extremely difficult for its people.
"Then, one day, a Pokémon appeared in Desert City. With its help, the city prospered, and it became deeply beloved by the people there.
"However, humanity's conflicts born of greed gradually influenced that Pokémon, making it competitive and obsessed with winning.
"It even began endlessly wreaking havoc on its surroundings to flaunt its power. It used its abilities to summon the Legendary Pokémon Reshiram and Zekrom, defeating them to prove its own strength."
"Until one day, a man brought out the legendary Vessel of Retribution and finally managed to seal the power within that Pokémon.
"The Pokémon in this story was Hoopa as it is now, while the man who used the Vessel of Retribution to seal Hoopa's power was my grandfather."
"Having great power is certainly a good thing, but such power should be used to protect the things that matter.
"Excessively pursuing even greater strength is not necessarily a good thing. I don't want to see you become like Hoopa was in the past."
To Mairin, Seiya, who wanted Hoopa to summon Legendary Pokémon and fight him, looked exactly like the Hoopa of old who had flaunted its strength.
That was why Mairin had refused Seiya on Hoopa's behalf. She did not want to see Seiya become like the Hoopa of the past, nor did she want Hoopa to abuse its abilities.
Hearing Mairin's reason for refusing him, Seiya froze for a moment.
After all, even he had never expected that one day he would be lectured by a little girl.
Mairin and her older brother had accompanied Hoopa since childhood, so they shared an