News announcer-turned-TV star Jang Sung Kyu (also known as Jang Seong Kyu) shared a cryptic Instagram post that has since worried his fans. On September 4, 2025 (KST), Jang Sung Kyu uploaded a black screen with the short caption, “20250904. Sung Kyu, don’t forget about today.” Without further explanation, the ambiguous message left Korean netizens confused and concerned. While Jang Sung…
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