Actor Joo Won revealed his friendship with Im Yoon Ho and 2PM's Chansung.

Today, Joo Won posted on his Twitter, "I had fun~ Chasung Yoon Ho I love you. In Tokyo" along with a picture.

In the picture, Joo Won is posing with Chansung and Im Yoon Ho that he had acted together with for MBC drama "7th Grade Civil." They seemed to have stayed as good friends even though the drama had been over for a while now.

Internet users who saw this commented, "They're all so good-looking," "I miss the drama," etc.

Photo Credit: Joo Won Twitter