Though Kotoko felt she had made a connection to Naoki’s heart, she is shocked to hear suddenly about his marriage-interview. The partner of the interview is Oizumi Sahoko, the granddaughter of the chairman of Hokuei Company, who is considering funding Shigeki’s company. Noriko and Kotoko plan to ruin their marriage-interview, as they panic at the prospect of Naoki’s marriage to a perfect lady. Matsumoto comes to the aid as well, but ...
Though you know it's in vain, 
you persevere no matter what.
Aunque sepas que es en vano,
sigues adelante, pase lo que pase.
Aunque sepas que es en vano,
sigues adelante, pase lo que pase.
Même si tu te fatigues pour rien,
tu n’abandonnes jamais.
Mesmo sabendo que é em 
vão, você aguenta firme.