It’s official: Highlight’s Yoon Doojoon is making his long-awaited return to the small screen! On May 1, Highlight’s agency Around Us Entertainment announced, “Yoon Doojoon has been confirmed to appear in the drama ‘There is No Goo Pil Soo’ [literal translation], which will begin filming in July.” “There is No Goo Pil Soo” is a