Yoon Ji-sung and Sung-jin appeared in front of MC Jang Sung-kyu and Kim Sung-kyu, who were expected to come to the group on the 13th. Yoon Ji-sung said, "When I go out here, there is a rumor that I will become a wolkle." Sung-jin came out because he wanted to find a sense because he had gone to the army and had a gap. "Jang Sung-kyu" began the "truth test" with a solemn declaration that "there should not be a lie" in order to become a "world class" for two people. First, Sungjin started to verify his own portal site profile. In the height and weight of ⁇ 178cm, 78kg ⁇ , Jang Sung-kyu wondered that ⁇ Idol is not the weight of minus 110m from the height, and it is similar in size to me when it is ⁇ 178cm and 78kg. Sung-jin said that he weighed more than 82 kilograms, not ⁇ 78 kilograms. In addition, Jang Sung-kyu and Kim Sung-kyu are 178cm tall, and Sung-jin is likely to increase in the future. Yoon Ji-sung made a shocking remark when his profile appeared on the screen, saying that Friend died 13 years ago. Yoon Ji-sung said that his life was not solved so he changed his name in the name of Yoon Byung-ok. He said that he wanted to be an entertainer with his name. Kim Sung-kyu said, "I thought it was time to change it." Kim Sung-kyu said, "I thought it was time to change it." Jang Sung-kyu said, "Did not you learn the ceremony in the army?" Sung-jin was so bad that he was the only one in JYP who freed the basic choreography. ⁇ ⁇ ⁇ ⁇ ⁇ It was said that it was made. However, Sungjin was acclaimed for his perfect singing of Park Hyo-shin's famous song, which is famous for its difficulty.