Visiting her friend Heo Sun-mi who is recuperating from a broken leg in the hospital, So-eun tells her she is in love with Dong-hee.

They discover that they attend the same university and plan to meet in front of the school clock tower, where Ji-in offers to lend So-eun a book for amateur HAM radio operators.

Later at night, they argue about why the other person did not show up, and about the weather, and Ji-in is suddenly shocked to discover he is speaking over a radio with a disconnected power plug.

Ji-in is close to a girl at school, Seo Hyeon-ji (Ha Ji-won), whom he takes for granted as she is always hanging around him, but for whom he comes to care for deeply.

This breaks So-eun's world apart, and she runs to the hospital to see the sleeping Dong-hee with Sun-mi's name now signed on his plaster cast.

He finds her as a professor of English at another university and is touched to see her still single, but beautiful and happy, while So-eun smiles at him with vague recognition as she passes by.

From 1979: From 2000: A remake of the movie directed by Seo Eun-young, starring Yeo Jin-goo, Cho Yi-hyun, Kim Hye-yoon, and Na In-woo was released in November 2022.