Han Kyul lives the rich playboy life while Eun Chan struggles to pay the bills. The two meet by chance.
Han Kyul hires Eun Chan to pose as his gay lover.
Han Kyul is forced to take over the Coffee Prince shop by his grandmother, and he enlists Eun Chan's help.
It is the grand opening for Coffee Prince, but business is harder to bring in than they expected.
The Coffee Princes head out to the countryside for their first team-building retreat, but one more person learns of Eun Chan's secret.
Eun Chan goes on her first "date" with Han Sung. Han Kyul struggles with his unexpected feelings for Eun Chan.
Han Kyul fires Eun Chan, which affects them, and all of the other Princes, more than either of them care to admit.
Still confused, Han Kyul proposes that he and Eun Chan become sworn brothers.
Han Kyul and Eun Chan celebrate their momentary bliss of brotherhood, but it is quickly shattered.
As the Coffee Prince Concert quickly approaches, the relationships between Eun Chan and Han Kyul, and Yoo Joo and Han Sung begin to fall apart.
Eun Chan wishes to reveal her true identity. Yoo Joo receives an offer from the States that threatens her relationship with Han Sung.
Betrayed on all sides, Han Kyul hesitates on forgiving Eun Chan. Meanwhile, Yoo Joo prepares to leave for New York.
Han Kyul and Eun Chan enjoy the "honeymoon phase" of their relationship, despite their awareness that he might leave for the States in a month.
Eun Chan is introduced to Han Kyul's family as his new girlfriend. Yoo Joo tells Han Sung that she is expecting.
Yoo Joo and Han Sung's wedding makes Han Kyul more anxious to marry Eun Chan.
Han Kyul's grandmother is in the hospital, but that doesn't stop her from meddling in his relationship with Eun Chan.
Eun Chan leaves for Italy to study to become a barista for two years.