Among domestic travelers in Korea, a popular catchphrase has taken root to describe the post-vacation blues: Busan fever. The term captures the lingering nostalgia visitors feel for the southern port city's coastal views, vibrant night markets and laid-back atmosphere long after their trips have ended. Starting this week, the Busan Metropolitan Government is offering a digital remedy for that homesickness. City officials launched Busan Kku, a dedicated online platform distributing free downloadable digital merchandise — ranging from smartphone wallpapers to tablet stickers — designed to help domestic and international travelers bring a piece of Busan into their daily lives. The initiative taps directly into a popular youth culture trend in Korea known as "ponkku" (decorating smartphones) and "keomkku" (customizing computers and tablets). Moving away from traditional, text-heavy public relations, municipal planners collaborated with local Busan illustrators to craft high-quality digital goods that appeal to Gen Z and digital natives. Downloads include aesthetic illustrations of iconi