He had worried fans after reports that he injured his forehead during 'The Unit' practice. He posted a selca (showing a bandaid over his injury) and wrote, "Hello, it's Euijin. Everyone, you were surprised by the sudden articles, right?? I've finished up practice and I'm back home. I'm sorry for worrying everyone, and thank you for worrying about me. I'll take care of my health as much as people are worrying about me, and be an Euijin who continues to show his good side. Thank you."
It's a relief to see that he's doing okay! On a lighter note, he seems to have dyed his hair black from his trademark blonde that he's had so far in the show.