After their first kiss, nothing changes between Kotoko and Naoki. Kotoko is now a college student, and a powerful love-rival Matsumoto Yuko emerges at the university. Kotoko and Naoki are in different departments, but Kotoko pursues ways to get closer to Naoki. She joins the tennis club he's in, but she cannot keep up with the training. On one of those nights, Kotoko's father decides to leave the Irie home, because he wants Kotoko to give up on Naoki. This comes as a big shock to Kotoko.
Out of my eighteen years, 
this past year was the most painful.
De dieciocho años, el último
 ha sido el más molesto.
De mis dieciocho años, 
este último ha sido el peor.
Sur 18 ans de vie,
De dezoito anos de vida, esse
 último foi o mais sofrido.