As a tomboy struggles through multiple jobs that don't quite make ends meet, a wealthy matriarch plans to change her ungrounded 29-year-old spoiled grandson.
As it becomes recognizable - not only to himself - that he is developing a personal interest in Eun-chan, Han-kyul devises a simple way to confirm his sexual orientation.
While Han-kyul becomes melancholy over news of his grandmother's terminal condition, he seeks professional advice on what to do about his taboo feelings for Eun-chan.
Eun-chan and Han-kyul enjoy their new brother-brother relationship but, in time, Han-kyul knows it's not enough and that he can't accept a relationship with a guy.
Han-kyul's grandmother finally breaks the silence over Han-kyul's true origin, Yoo-joo returns, and Ha-rim gets caught giving Eun-chan a lesson in sex education.
Eun-chan's androgynous looks don't go over well with Han-kyul's family, who further believe her responsible for Han-kyul's sudden decision not to go to New York.
As one older member of Han-kyul's family begins to warm up to Eun-chan, Han-kyul and Eun-chan butt heads over Eun-chan's repayment plan and engagement length issues.
Han-kyul's grandmother steps in just as a riff develops between Han-kyul and Eun-chan over the length of their engagement, affording Eun-chan a chance to study in Italy.