I Have A Gardevoir

A twenty-seven-year-old ordinary man, who traveled to the world of cursed spirits, became the “non-existent” heir of the Kamo family.
No spells, no status, no pain from his father, no love from his mother, but it doesn’t matter because he has the “Pokémon Trainer System”.
I, Akari, will become a legend even if I fight back with spells.
I want to completely change the rotten pattern of the magic world that has remained unchanged for thousands of years.