Nope, it's really about the divine protection embroidery.
Next chapter when Ewey try to cut it, she couldn't, and the ex-king explains that this DOES have protection embroidery against blades.
(it's also at this point that Ewey finally noted that he is the ex-king, since the shock of the cloth made her ignored the rest of that conversation initially)
Then one of the spirits came in and slice off the jewelries attached, much to Rodan and the ex-king's surprise.
give me more older man as romantic interests! im tired of the regular prince or dukes! give me more kings or prime ministers! give me more silver foxes!
She's right though, that outfit is horrendous. It looks like the cut-n'-paste clothing projects you get when you're in daycare. So ugly. Not only is her family ugly on the inside and outside, they bring more ugly into the world. Burn it
What if Ewey was robbed away when she's a baby and that her "parents" are not her biologically parents. That explains why her "Family" looks different from her??? And also in regards to the king's clothes. It might be the work of her younger sister tho???? Idk
What part of that outfit is ok, guess it's really true some brand names are actually selling just a name as no real quality products. He'd probably get better from a regular seamstress in town over her parents garbage