As for the reason, it's of course to accumulate wealth. What could be more convenient than using vast amounts of wealth to approach those Giant Dragons and make them serve oneself?
Sambia, a nation with immense wealth, has always relied on mercenaries instead of forming its own army, which is a highly unusual situation unless they hold trump cards in their hands that make them unafraid of invasions by ordinary armies from other forces, such as the Purple Dragon Army of the Komeer Kingdom.
If a Dragon Cult, wielding numerous Giant Dragons and Dragon Sorcery Wraith allies, were lurking behind the scenes, it would all make sense.
Years ago, when Anka rapidly developed in the Valley, the party that suffered the most in terms of interests was naturally Sambia. When they realized that ordinary methods couldn't suppress Anka's growth, they had no choice but to send out their trump card—the Dragon Sorcery Wraith.
