What happens when Shin MinSun finds an ad on internet where it says that a group of 12 guys search an housing in Seoul? She's surprised by the amount of people who answered them, offering them their lodgement.  She registered too by mistake. What she doesn't know is that she's going to be chosen among all these poeple to live with EXO, an unknown group of 12 charming, crazy, funny and incredible boys. 

Holidays... What do holidays mean to you?  For Song Hana, they meant Fun, Happiness and Freedom.  Starlight Summer Camp was her dream since she was 6; meeting teenagers of her age, discovering new things, being independant, no school, no obligations. Just being free.