RIIZE's 'Insomnia'

In the Korean comments

One comment compares Shotaro’s facial pattern to a mark from Demon Slayer and jokingly calls him “Shojiro, the dance master.” Another describes the pattern as resembling coral, giving viewers two specific details to look for.

What the words mean

“소년만화에서 갓 튀어나온 것처럼” (sonyeon manhwa-eseo gat twieonaon geotcheoreom) literally means “as if he had just sprung out of a boys’ manga.” Here, it is a casual, exaggerated way of saying Shotaro looks exactly like a handsome manga hero.