A rumor about Jan-di being pregnant is spread around school by Jun-pyo. She punches him in retaliation, which ultimately leads to his crush on her. He clumsily tries to pursue her but comes off as arrogant. Later, Ji-hoo's first love Min Seo-hyun returns from France.
Despite returning Ji-hoo's feelings, Seo-hyun decides to go back to France. Jan-di sees the two kiss, which would have been awkward if Jun-pyo had not saved her. She then gets drunk and spends the night at Jun-pyo's. Her opinion of him gradually begins to shift.
Ji-hoo decides to follow Seo-hyun to France. Later, Jan-di and Jun-pyo find themselves trapped together. After this incident, the whole school begins to think they are dating which Jun-pyo does not deny. Things turn sour when photos of Jan-di with another guy are circulated.