NU’EST arrives at an abandoned school on an eerie night, where a ghost of the class president waits for his friends to return. A unique timetable created by gathering king coupon votes from L.O.Λ.Es will finally be revealed! They play games in trying to obtain hints on the class president’s identity, where laughter seems never-ending during this Summer school class. Could their reasoning power lead them to success as NU’EST tries to find the class president in hiding?