- Heo shared the image on social media on Sept. 16.
- The photo shows Heo and San posing closely and giving thumbs-up signs.
- Fans drew attention to matching dark hair, facial features and smiles.
- San remains active with ATEEZ promotions and the 'BAD' challenge trend.
- The article notes San's recent role in driving the 'Northern Duke' trend through the 'BAD' choreography.
- No official schedule or event change was announced in the post.
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