RIIZE - Insomnia Music Video

In the Korean comments

One comment reads, in translation, “Giving this kind of role to someone characterized as the team’s retriever, baby angel and healing Michael is so much fun—thank you.” Another says the contrast works because Anton is usually “such a gentle, soft puppy,” but also suits this chilling side.

What the words mean

“갑자기 분위기 호러” (gapjagi bunwigi horeo, literally “suddenly, the atmosphere is horror”) means that the clip abruptly swerves into horror. It is casual, joking phrasing, also shortened in another comment to “갑분호러” (gapbun-horeo, sudden horror turn).