S1, E349: Joon Ho prepares a party for Sang Min's 50th birthday; members gather and can't stop teasing Sang Min; Jae Hoon, Won Hee and Jong Min take a math lesson; Sang Min, Joon Ho and Kangnam go to Kim Hye Sun's gym.
Starring Chung Seung-je
S1, E349: Joon Ho prepares a party for Sang Min's 50th birthday; members gather and can't stop teasing Sang Min; Jae Hoon, Won Hee and Jong Min take a math lesson; Sang Min, Joon Ho and Kangnam go to Kim Hye Sun's gym.