Prince's First Love

After two years of studying recreation at college, Yoo-bin delivers sandwiches for a living. She wants to work at a foreign resort as an organizer for tourists. Unhappy with her job and her mother's constant nagging, she likes seeing Seong-hyeon when she delivers sandwiches. He works at a cellular phone company as a network general manager.

Yoo-bin splurges on buying a ring just for the chance to win a trip to a resort in Japan. After winning the trip, she meets the resort owner's son, Geon-hee. He believes she is Japanese and invites her to his birthday party. Hae-mee feels threatened by Geon-hee's attraction to Yoo-bin.

Geon-hee avoids his father who believes it is time for him to stop partying and work. Yoo-bin passes an interview for a job only to fall victim to Geon-hee's revenge. Seong-hyeon allows her to be his secretary on a trial basis.

Geon-hee decides to woo Yoo-bin, who turns him down. Sng-hyeon does not hire her after the trial period due to her poor skills. Geon-hee's father, President Choi, finds out Geon-hee prevented Yoo-bin from being hired for strictly personal reasons.

Seong-hyeon meets with President Choi on a business trip to Bali. Choi is disturbed when he sees Mee-hee, Seong-hyeon's mother, and decides to learn more about him. Geon-hee abandons Yoo-bin in the sea on a snorkeling trip. After her life vest is found, he becomes worried.

Yoo-bin and Geon-hee are unhappy when they are paired together by management. Geon-hee is forced to rescue Yoo-bin during a rafting mishap. Geon-hee becomes jealous when he sees Yoo-bin and Seong-hyeon together.

Geon-hee is in trouble with Hae-mee over Yoo-bin. He strands Seong-hyeon and Yoo-bin on an island. Seong-hyeon only wants to work while Yoo-bin wants to have fun. Geon-hee becomes uneasy at the thought of Yoo-bin and Seong-hyeon together.

Believing Seong-hyeon is his son, President Choi feels joy at his hard working attitude. A drunk Geon-hee disappoints his father. They have a physical confrontation. Mee-hee warns Choi to stay away from her son. He begs her to reconsider. Geon-hee's jealousy increases after watching the closeness of Seong-hyeon and Yoo-bin.

Yoo Bin tells Gun Hee that she's going back to Seoul and he tells her to stay with him but she leaves to catch Seung Hyun at the airport. Seung Hyun tells her to forget everything that happened between them after he sees how Gun Hee chased after her.

Geon-hee brings Yoo-bin's parents to Bali. They argue about his role in Seong-hyeon leaving Bali. She is confused by the changes in his behavior. Despite her mother's delight at Geon-hee's interest in Yoo-bin, her father is worried about his daughter.

Yoo-bin and Geon-hee's romantic night in Bali is interupted by business demands. Geon-hee resorts to extreme measures to bring Yoo-bin back to Seoul. Mee-hee urges Seong-hyeon to accept President Choi as his father after learning he has liver disease.

Geon-hee's happiness turns to anger when he learns Seong-hyeon is the reason Yoo-bin is returning to Seoul. Yoo-bin quits her job rather than become Geon-hee's secretary. Seong-hyeon is offered a job by President Choi. Mee-hee is concerned about the love triangle.

Mee-hee tells Yoo-bin that Geon-hee and Seong-hyeon are brothers. Yoo-bin flees to job at a resort in Tahiti. Geon-hee tries to find her. Seong-hyeon stumbles across Yoo-bin after following a difficult client to Tahiti.

Geon-hee tracks Yoo-bin to Tahiti. Seong-hyeon and Yoo-bin enjoy their limited time together at the resort. Seong-hyeon abandons his work to be with Yoo-bin. She tries to brush Geon-hee off.

Seong-hyeon and Choi have words when personal matters interfere with work. Mee-hee fears Geon-hee and Seong-hyeon will not be able to bond as brothers so long as Yoo-bin is around. Geon-hee resolves to focus on work to please his father. Choi wants Seong-hyeon and Yoo-bin to marry quickly.

The official engagement party for Seong-hyeon and Yoo-bin is agony for Geon-hee. Unable to forget his feelings for her, Geon-hee invites Yoo-bin to spend the day with him at an amusement park. They pretend they just met and forget the past for the day.

Yoo-bin has mixed feeling for Geon-hee despite her engagement to Seong-hyeon. An official family portrait causes Geon-hee to voice his feelings for Yoo-bin. She breaks her engagement to Seong-hyeon as a result. Yoo-bin and Geon-hee discuss their feelings.

Geon-hee sees his father on his deathbed. His father urges his two sons to settle their differences. Geon-hee tries to impress his brother with his business skills. Yoo-bin meets Geon-hee on the street while delivering sandwiches. After seeing them together, Seong-hyeon sends Yoo-bin to the resort Geon-hee works at.