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In the Korean comments

Yunjin's expression is what three of the 11 stored Korean-language comments are about, and each says it differently. One asks, in translation, "Why is Yunjin's expression so cute, lol." Another reads, in translation, "Yunjin's gaze is melting the lens right now." The third says, in translation, that Yunjin alone has such a 뀨웅 (kkyu-ung, an online cutesy sound word) feel in the expression, and ends with "so cute." A separate comment is about five people looking. In translation: "With five of them looking, it's nice, but it's a lot, but it's nice, but it's a lot." It alternates between the two reactions and does not pick one. Another comment says, in translation, "Eunchae honestly looks like a game character."

What the words mean

뀨웅 (kkyu-ung, an online cutesy sound word) has no literal meaning to translate. It is a sound-effect-style word from online talk. The commenter uses it as a label for a kind of look, "뀨웅? 느낌" (kkyu-ung? neukkim, a "kkyu-ung?" feel), and follows it straight away with 귀여워 (gwiyeowo, cute). It works as a compliment in a casual, playful, typed-out register. 부담스러운데 (budamseureounde, "it's burdensome, but") comes from a word meaning burden. In a comment about being looked at, it means something closer to "it's a bit much", too intense to take in comfortably. Here it sits right beside 좋은데 (joeunde, "it's nice, but"), and the pair is repeated. It reads as one half of a back-and-forth rather than a verdict. The register is casual and spoken-style.