혼성 댄스 그룹 결성을 위한 멤버 영입 1순위 비! 모두가 기다린 비 등장! "하루에 몇 깡 하세요?" 화려한 조명 속에서 펼쳐지는 댄스 레전드 TIME! '놀면 뭐하니? - it's 레인 함께 할 수 있을깡...?'
Jae Seok visits his old friends to see if they are suitable for his mixed-gender group for the upcoming summer season. First he visits Kwang Hee, but he somehow lacks what Jae Seok wants from a dancer. Then he visits Henry, but his unique approach to music doesn’t fit Jae Seok’s needs. Lastly, Jae Seok meets up with Rain, the legendary dancer.