Kotoko has to leave the Irie home, and decides to give up on Naoki. But she is determined to pursue the grueling training in tennis. It so happens that she is challenged to a pairs match, paired with Naoki against the Sudo-Matsumoto team. Naoki loses for the first time in his life, so he decides to coach Kotoko in tennis. On the other hand, Noriko misses Kotoko and goes undercover to the university, where she gets the news that Naoki and Kotoko have had their first kiss.
That would just make it 
harder for you to leave.
Si nos hubiésemos quedado más tiempo,
 habría sido más difícil irse.
Habría sido más difícil irse cuanto 
más tiempo nos hubiéramos quedado.
Tu ne te sens pas soulagée ?
Quanto mais nós ficássemos,
 mais difícil seria para ir embora.