Overview: Wiping, Pulling, eating and enjoying~ Today is The Boyz' special day (aka Younghoon Day) Completing a chore quest, they have a busy day ahead of them. The Boyz divide into two groups (One for grocery shopping and another for chores). But something's fishy about the former... We find out that they've been preparing a birthday party! From homemade seaweed soup to an amazing present, and a sincere birthday song only for Younghoon. Will the Boyz pull off presenting Younghoon with an amazing 'Happy Younghoon Day' party?