[All] Jung Hae-in shows off his forearms while making a Secret Santa cookie bag, impressing the production team.

Jung Hae-in You are MBC Secret Santa Club In it, he appeared as actress Go Yoon-jung's Secret Santa.
Show your sincerity in the Secret Santa game by preparing customized gifts such as a green tumbler, neck pillow, and blanket.
As he started making the cookie bag, his forearms were clearly visible, and the production team was also impressed, saying, "His forearms are really..."
Jung Hae-in was cutely embarrassed, saying he never imagined that he would be making a snack bag at a department store.