Dynamic Duo's member Gaeko welcomed Yoo Sae Yoon who came to visit him at his exhibition.

On October 22, Gaeko posted on his Instagram, "The puberty patient came" along with a picture.

In the picture, Yoo Sae Yoon is behind the frame that describes Gaeko's exhibit, looking to the side. His serious face aroused much laughter.

Internet users who saw this commented, "I didn't know those two were close," "Puberty boy, that's so funny," and "Yoo Sae Yoon is so funny."

Gaeko released his solo album Redingray on October 16 and held the art exhibit "Redingray - The Wave" from October 17 to 24.