Kim Jeong Hoon, Park Jeong Hyun, Oh Jeong Yeon casted in new JTBC show

JTBC gameshow "학교 다녀오겠습니다" (Let's go to school) has casted Kim Jeong Hoon, Park Jeong Hyun, Oh Jeong Yeon,... among many other stars.
Kim Jeong Hoon and Lena Park (Park Jeong Hyun - who graduated from Columbia University) are expected to be the charm of the program.
The gameshow is schedule to be broadcasted in June.

Source: http://star.mt.co.kr/view/stview.php?no=2015051208232442724