Cha Tae Hyun chatted with fans via the 'V' app on December 27 and addressed the hospitalization of co-star Kim Yoo Jung due to stress and shock. 

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He said, "Yesterday, Kim Yoo Jung was unwell again.  I wish that all of you would lend your strength to Yoo Jung.  Please support her a bit.  We had a stage greeting yesterday, and Yoo Jung said that antibiotics don't work on her. She said she's allergic to antibiotics. When she catches a cold, she can't take medicine and is the type who gets better after suffering through it.  When I look at her, it looks like I'm looking my babies, so it's very upsetting.  I wish that Yoo Jung would be strong.  Please give her some hearts."