HyunA's exceptional costume brand is Hot Topic in South Korea. Highly exposed costumes worn on the music video and stage of the new song "I'm Not COOL". A product of fashion brand Rui launched in 2019 by Chinese designer Rui Zhou. The price is $ 4,98 (about 52,000 yen) for body suits and $ 263 (about 28,000 yen) for stockings. .. ..