On February 4, 2026, members Seeun, Isa, and Yoon of STAYC attended the '2026 F/W Seoul Fashion Week' Kwak Hyun-joo Collection fashion show at the Dongdaemun Design Plaza (DDP) in Seoul. They transformed into the unique concept of 'Nyang Nyang Nyangz,' adding vibrancy to the event. The Seoul Fashion Week, running until February 8, is centered at DDP and features various fashion shows, trade shows, and forums, with STAYC's participation being one of the highlights of the event.