"Ahem..."
He immediately folded his wings, puffed out his chest, and assumed his most dignified posture, even gracefully stroking the feathers on his chest with a wingtip.
"Since Your Majesty the Slime has extended such a gracious invitation, and has so... uh... presciently planned for the future of the Kingdom and this fief, I, as a reasonable nobleman who holds the Kingdom's interests paramount, naturally have no reason to refuse."
He turned his head and whacked Arthur's helmet with his wingtip.
"Follower, what are you spacing out for? Hurry and pay your respects to our great and wise Majesty, the Slime King."
In silence, Arthur once again dropped to one knee, facing Chen Yu, and performed an even deeper knight's salute:
"Knight Arthur, at your service, Your Majesty. To protect the domain is to protect the way of nature."
Chen Yu nodded in satisfaction.
King, noble, and knight.
Excellent.
He had gathered the three social classes of a kingdom all at once.
