SJS got his vacation on 8/31/2007 after he served the military for 100 days.
His Fan Club Tasanjisuk held a Birthday Fan Meeting on 9/2. (His birthday was 9/9/1981).
In this fan meeting, SJS was questioned about Goo Hye Sun by his fans because GHS mentioned in one TV program, "One actor with whom I collaborated in a drama has been going after me even after the filming was over." Many people left messages on internet that the actor is not Suh Ji Suk.
To answer the question, SJS stated, "What do you think? Goo Hye Sun is a good actress who taught me a lot during the joyful filming." Then he joked,"Already, there is a gap between Goo Hye Sun and me after I went to army." He said, "To clearly answer the question, Goo Hye Sun is like my close younger sister. This is the first time that I heard about her statement that you just told me. In this country, rumor puts people in an unfair and stifling position. Instead, I thank you for your concerns." Then, he added, "There is no need to deny that she is like my nice younger sister. Then, who is he? I am curious too." Then, his fans asked, "Now that you deny it, then why don you refute the rumor?" SJS answered with a laugh, "It is absolutely not funny."
Source: http://www.mydaily.co.kr/news/read.html?newsid=200709021602441111&ext=na