This old man was chummy with Yeon as they both used to save each other hides before the ancient emperor of water and wind.
The Wind Kingdom is the neighbor of the kingdom of the Water. The land of wind is ruled by the kingdom of Wind. The Water kingdom shares deep ties with the Wind Kingdom, so deep that the prince and princess of the Wind and Water kingdom usually marries each other.
Whittaker knew that elder Zachary was a famous Magic chef, and even a weak chicken can evolve into the king of chicken by taking a sip of his celestial wine (10-star). This elder can turn a weakling into a Dragon king by just feeding them.
The treasure in elder Zachary inheritance trials are bound to be high-ranked, so Whittaker replied instantly with burning curiosity, "Of course, I'm willing to undergo Elder's inheritance trial."