The two are in the same label, and Junsu revealed, "I got to know him because we are from the same company. We both like soccer. I haven't really been able to really meet him and talk to him, which is disappointing."
Junsu had recently called Ryu Joon Yeol on a radio show to solve a quiz. When Ryu Joon Yeol joked, "Will I get a kimchi refrigerator?" (a common prize for radio quizzes), Junsu had answered, "If you get 5 out of 10, I'll give you one." Ryu Joon Yeol ended up getting 9 right, so Junsu actually bought him a fridge!
Not only that, he went to the store to pick one out himself to gift to the actor. He said, "I heard he was really optimistic. I think we'll get along well. I want to have coffee with him and sit down and talk to him."