"Mystery Virgin" (ミステリー　ヴァージン) is the debut solo single of Japanese recording artist Ryosuke Yamada. It was the singer’s first solo single following his success as the lead member of popular Japanese boy band, Hey! Say! JUMP. The song was produced and written by Vandrythem, Erik Lidbom, and Daichi. It was first solicited to mainstream radio on November 30, 2012 and was available for digital download on December 26, 2012. The song was physically released on January 9, 2013.