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COER at the Core: How CORTIS Engineered a Fandom in 100 Days

COER at the Core: How CORTIS Engineered a Fandom in 100 Days

When BigHit Music’s newest boy group CORTIS emerged in August 2025, their mission statement—Color Outside the Lines—felt like branding poetry. Three months later, the group turned that ethos into architecture by unveiling an official fandom name: COER. The reveal wasn’t just...

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