On February 22, 2025 (KST), INFINITE member Kim Sunggyu‘s agency, BILLIONS, shared that the idol’s older sister had passed away after battling an illness. INFINITE’s Sunggyu (also known as Kim Sungkyu) | @IFNT_Official_/X BILLIONS noted that, in accordance with the bereaved’s wishes, her funeral will be held privately. The agency requested, “We ask for your support and understanding so…
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