Hindi naman kasalanan ni Katie Santiago kung bakit natapunan niya ng spaghetti ang shirt ni Declan Montemayor, ang pinakagwapo’t mayaman (at mayabang!) na lalaki sa university nila. But she has to pay the price—literally—and it’s a hefty P200,000. Dahil wala naman siyang pambayad, she agreed to the next best way of paying off her debt: by being Declan’s personal slave for a month. She has to do everything for him, from buying school supplies pati pagluluto ng pagkain para kay Declan. Kahit masungit at palautos si Declan, napapansin ni Katie na he’s really a good guy underneath it all. At si Declan naman, nakikita niya kung gaano kabait at kaganda si Katie. Will this master-slave relationship become something more? Or will things start getting complicated between them?