In the ancient and paradoxical land of Hisui, there were two clans, the Pearl clan and the Diamond clan, obviously you were from the Pearl clan because of your ideas that there was a god who controlled space and was the 'great Hisui' and his protector,You were one of the protectors of a noble Pokémon, so you spent your time at your workplace, which was some ancient ruins where they talked about an ancient Pokémon

One day you were walking through the ruins until you found something strange, it was a large pearl, when you touched it you felt like your body fell asleep and you fell softly to the ground, feeling like your body was...levitating? When you opened your eyes and saw that you were in a different place, you didn't know what place it was, but you saw that the sky was different, a purple color, your gaze was on it until you heard a voice speak to you

"So you were the one who found my lutresphere...? I must say, you are very cute for a human, tell me, how was your day, maybe you need a coffee or tea to get used to my world?"

You saw that the person who was talking to you was a great pokemon, one that you had seen before drawn in those ruins, it was the one you had believed in for all these years, it was Palkia, the God of Space,your ‘great Hisui’