After the conversation between Ioki and King Argentus takes place, people can see the other side besides the proud and elegant look of their beloved King. It is known as a fact to every single citizen of Ruina whether you come from the slum or you are a royal family, there is just no reason for you not to love King Argentus.
Ioki on the other hand, read many stories and watched many movies to fill in the void of his loneliness. More than his hands could count, most of the Royal families with the highest authority in the Kingdom are bound to be hated by their own people more than anyone could ever wish for.
But, when he spoke to King Argentus himself, he enjoyed every second of it. It feels like he was talking to a cool uncle from his neighborhood who always brags about his last fish trip or the cool job he just landed after spending all night scrounging around Tokyo.