1x1 - Episode 1

September 18, 2000

Professor Yoon's couple learns their child has been switched through blood tests after a car accident.

1x2 - Episode 2

September 19, 2000

Professor Yoon and Kim Soonim switch their children, but they only suffer from unfamiliar circumstances.

1x3 - Episode 3

September 25, 2000

Yoon Joonseo returns to his hometown and looks for Choi Eunseo. Eunseo has an unwanted encounter with Han Taeseok.

1x4 - Episode 4

September 26, 2000

Taeseok is upset with Eunseo going on a blind date for money and takes her to the beach where Joonseo comes.

1x5 - Episode 5

October 2, 2000

Joonseo feels sorry for Eunseo growing up in harsh circumstances. Taeseok's confession bothers him.

1x6 - Episode 6

October 3, 2000

Shin Yumi notices that the feelings between Eunseo and Joonseo are more than brother and sister.

1x7 - Episode 7

October 9, 2000

Joonseo and Eunseo decide to stay as brother and sister, but Taeseok sees her crying in Joonseo's arms.

1x8 - Episode 8

October 10, 2000

Joonseo and Eunseo go on a trip for just two of them, and Yoon Shinae exposes their relationship to their parents.

1x9 - Episode 9

October 16, 2000

Joonseo announces to his family that he will marry Eunseo, but everyone is against his decision.

1x10 - Episode 10

October 17, 2000

Joonseo feels guilty for Yumi's breakdown and changes his mind to stay with her, leaving Eunseo.

1x11 - Episode 11

October 23, 2000

Eunseo lies to Joonseo that she sees Taeseok again. Taeseok knows about it and pretends to be a couple.

1x12 - Episode 12

October 24, 2000

Eunseo learns she has leukemia and Taeseok begs her asking for a chance to cure her disease.

1x13 - Episode 13

October 30, 2000

Joonseo finds out Eunseo has leukemia, and Eunseo heads to the hospital with Taeseok for her treatment.

1x14 - Episode 14

October 31, 2000

Eunseo tells Joonseo to love each other forever, only in their hearts. Soon after she goes into a coma.

1x15 - Episode 15

November 6, 2000

Eunseo regains consciousness when Joonseo comes, and they decide to spend the rest of their time.

1x16 - Episode 16

November 7, 2000

Yumi decides to study abroad, and Taeseok leaves Joonseo and Eunseo together. Eunseo dies on Joonseo.

1x17 - Episode 17

November 14, 2000