Could I know where you found the info? I'm curious to learn about all mythology in this comic
Honestly the first thing that caught my attention was the crown and my knowledge and resources are also very limited so I just searched up 'traditional korean jade crown' and got that
they are 'representative of the Silla Kingdom (5th-6th century), featuring elaborate gold work adorned with comma-shaped jade beads called gogok, symbolizing fruits on a sacred world tree. These crowns were symbols of royal power and spiritual authority, combining precious materials with natural and cosmic imagery.'
So I searched up clothing with similar symbolism, the closest equivalent I got was the myeonbok that was around the time of Joseon dynasty so I'm still confused about that and I couldn't find anything to clear it up exactly, but the symbolism of the attire matches in both. If you do find something, do share!
I did some digging and in the last panel his attire I think symbolises the king as the mediator between heaven and earth, embodying authority, divine legitimacy, humility, and the duty to rule justly, maintaining harmony between heaven, earth and people. Something like a myeonbok? used only for important rituals, ceremonies or ancestral rites.
Now I'm really curious in what way the plot will progress ughh