Invincible Youth

Open House Day with special guests! (1x18)

Air date: Feb 19, 2010

G7 stop at an elementary school to surprise the graduates. G7 calls other celebrities to get them to come to a party. Guests that come include Kim Heechul (Super Junior); Lee Gye-in (actor); Hyoyeon (SNSD); Nicole (Kara); Beast (same agency as Hyuna, still up-and-coming so not a lot of screen time); Yeon Junghoon (actor), Sunhwa's grandmother and siblings.