RESCENE's Won-i sparks debate over dialect word 'museopno,' drawing politicians and language institute into the fray

A single offhand remark has set off a fierce online debate involving politicians and language scholars alike. The controversy centers on Won-i, leader of girl group RESCENE, whose YouTube channel recently crossed 1 million subscribers — a milestone celebrated as a triumph for a smaller-label act. During a lighthearted exchange with the production crew, Won-i uttered the phrase that would ignite the storm.

The moment came as Won-i entered the darkened bedroom of Minami — RESCENE's Japanese member — during filming. When the producer said "museopno" (roughly, "isn't it scary?"), Won-i echoed the phrase back: "Museopno. Even the lighting is scary."

For Won-i, who grew up in Geoje, South Gyeongsang Province, the expression was simply natural hometown speech. But after the video was released, it became the spark for a fierce controversy.

Kim Hyun-ji, an MBC Gyeongnam producer known for directing the documentary "Adult Kim Jang-ha," brought the remark into public debate on July 1 on X. Kim said she was "quite upset" to see a popular YouTube clip in which "a female idol and a producer were casually exchanging 'no, no' back and forth," and added that she felt a heightened sense of alarm because "young people are naturally using the ungrammatical particle 'no.'"

The post immediately set off a debate on social media over whether Won-i's use of the expression was a South Gyeongsang dialect form or a construction associated with Ilbe, a far-right online community. The dispute even drew in politicians.

Former Rebuilding Korea Party leader Cho Kuk and Reform Party leader Lee Jun-seok clashed directly. Cho argued that "Ilbe-style expressions" could be distinguished from genuine dialect, writing that "there are people who defend Ilbe's practice of mechanically attaching 'no' to the end of standard Korean sentences — a usage that mocks the late President Roh Moo-hyun — by claiming it is also used that way in Busan and the Yeongnam region." He added that "in Yeongnam dialect, interrogative sentences distinguish between 'na' and 'no.'"

Lee fired back on Facebook, saying Cho was "trying to conduct an ideological screening based on a single word ending." Lee said a 22-year-old idol from Geoje had been branded with the Ilbe label simply for saying "museopno" in her hometown dialect, and that "even when linguists explain that in southeastern dialects, 'no' is a sentence-ending particle used not only for questions but also for exclamations and soliloquies, the stigmatizing does not stop."

As the debate raged online, a formal query appeared on the National Institute of Korean Language's online Q&A service requesting an official interpretation. A user identifying themselves as a "democratic citizen" asked the institute to "clarify the precise meaning and actual scope of use of the Gyeongsang dialect ending '-no.'"

Broadcaster Kim Si-deok, who is from Andong, weighed in on social media with a post that began: "Why is the world so 'museopno'?" He wrote that he had grown up in Gyeongsang Province using dialect without a second thought, and that it was only after he began making a living from his regional speech that he started researching dialect materials and books in earnest.

He went on to say that "the 'museopno' Won-i of RESCENE used is indeed an interrogative sentence-ending suffix," and that for some time people had been labeling anyone who used the dialect particle "-no" as an Ilbe user — to which he said he had responded with phrases like "meorano," "waikanno" and "ilbe aida" (loosely, "what are you saying," "why would you do that" and "that's Ilbe talk").