Roy transmigrated to another world, but it wasn't the kind of magical world he had imagined.
The need to use magic efficiently led to the emergence of a profession called the Architect, whose role was to construct powerful magic models for spellcasters. Soul Cards came into being as a result.
Roy was an Architect, but the magic models he built were completely unlike those created by other Architects.
Pokemon, Yu-Gi-Oh!, Dark Souls... and many more!
Powerful summoned beasts and an endless variety of martial arts! These were things other magic models couldn't do. They brought strength, but also a will that surpassed that of other magic models!
Spellcasters went wild for them, wishing they could crack open his head. No one knew how many more ingenious ideas filled the mind of this genius Architect, admired by all. And no one knew that these games would also awaken sleeping gods and long-forgotten civilizations from the past. But to Roy, all he'd done was a little, insignificant work, and, most importantly, solve a few problems while curing his delicate stomach.
