On the 30th, Defconn shared many images on Instagram with the remark, "Like everyone else, I silently went to Joo Hyuk hyung's grave yesterday."

"You know?" he continued. Our Gutaengi hyung was an incomparably valuable person, he always remembers me.." The term Gutaengi is from the word 'Tosagupin' which is a metaphor for throwing something harshly when it is no longer useful. For instance, If you go hunting and catch a rabbit, the hunting dog becomes useless and you boil it and eat it. The term was the late Kim Joo Hyuk's nickname in 1 Night 2 Days where he and Defcon worked together.

On the other side, the late Kim Joo-hyuk died on October 30, 2017, in an accident in Samseong-dong, Seoul, after his vehicle flipped on a road. Kim Joo-hyuk and Defconn began dating after starring together on KBS2's '1 Night 2 Days.'