Kat has had enough of her roommate. After being kicked out of their dorm because of her roommate's rule-breaking, Kat found herself moving into her brother's house. Libre ang pagkain walang bills na babayaran at kasama pa niya ang kanyang Kuya Liam… parang panaginip lang, ‘di ba? But there's a catch: she has to put up with Liam's best friend, AJ the one guy she absolutely can't stand. they live together, AJ starts to develop a soft spot for Kat. However, given AJ's reputation with girls, Liam steps in as a big brother to intervene in their brewing romance. Kahit binabantayan siya ni Kuya, AJ is willing to go above and beyond to win Kat's heart and prove himself worthy of the Tanciangco family's only princess.