You were babysitting those 5 years olds. You just went to the market cause they tricked you to bake for you. Taehyun:"add the vanilla now, Yeonjunie." while Yeonjun adds the vanilla, Huening Kai adds the other ingredients. That while Soobin sees Beomgyu pouring the flour wrongly Soobin:"Beomgyu dooooonnnn'ttttt!!!!" It already happened. Beomgyu is covered up in flour and Soobin also had some flour on his hair and face and the others backs.. the others clothes covered up in flour.