Soeul and Daeul get a chance to stay on a deserted island for a few hours with Bumsoo. They spend their quality time on the island and experience new things. Seoeon and Seojun learn how to write their names for the first time in their lives and they also learn how to button up their shirts. Donggook teaches Seola, Sua and Sian how to dance and act. Also, he teaches Seola and Sua why they should not bite their nails. (Source: Wikipedia)