There are rumors that FIM'S CLUB members gathered in a secret laboratory are researching the “Happiness Virus.” Peek into their small experimental site at a cheerful and slightly mysterious pop-up store. Just passing by the cute and wondrous scenes will make you smile. The event will be held on the first floor of HYBE YONGSAN from August 27 to 31, 2026, and advance reservations can be made through Weverse starting August 21.