After Donghae’s boss, Leeteuk, pays the Earth for the legendary idol Kim Heechul to become the fresh face of his clothing line, Donghae doesn't expect to accepting the role of a babysitter to the 21 year old narcissistic, irritating, childish spoilt brat Heechul turns out to be. However, after the numerous fights he endures over hairspray and diet pills, could he be starting to realise that there's somehow more to this ‘spoiled brat’ than he’d first thought?