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.
Well, you and Onii-chan 
have joined the same club.
Porque Onii-chan y Kotoko-chan
se han unido al mismo club.
Ya que os habéis unido al mismo club.
Si vous vous inscrivez
dans le même club,
Você e o meu filho entraram 
no mesmo clube.