Seo Kang-jun took to the V app Thursday to release a video from his recent photoshoot for a local fashion magazine. In the video he appeared in two outfits -- one in white and the other in black.For his black outfit, he wore a jacket without a shirt, revealing his abdominal muscles. In the interview that followed the photo shoot, he said he had to work hard to build his body. “I worked out five days a week,” he said. “Not only my trainer, but also my oriental doctor said my body is not suitable for bulking up. So I need to work out longer and harder.”Seo recently started filming for the upcoming KBS TV drama “Are You Human Too?”Naver’s real-time broadcasting app V allows fans to interact with their favorite K-pop stars through live broadcasts. The app is available for Android and iOS. For more information, visit http://www.vlive.tv.By Kim So-yeon ()Google Play https://play.google.com/store/apps/details?id=com.naver.vapp Apple App Store https://itunes.apple.com/app/id1019447011?mt=8