Kotoko is supposed to spend Christmas eve with Jinko and Satomi, but they cancel on her unexpectedly. Kotoko is now all alone at the Irie family’s house. Meanwhile, on his way to Shigeki’s company’s 20th anniversary party, Naoki sees Jinko and her boyfriend in town. On the other hand, Kinnosuke coincidentally encounters Satomi and her boyfriend at the restaurant Aihara. Kinnosuke decides to surprise Kotoko, since she is spending Christmas eve all alone...
It's too bad you can't come with us, 
but you have fun, Kotoko-chan.
Qué mal que no puedas venir con nosotros, 
pero diviértete, Kotoko-chan.
Qué pena que no puedas venir con 
nosotros. Diviértete, Kotoko-chan.
Je suis triste
que tu ne viennes pas avec nous,
É uma pena você não poder vir 
conosco, mas divirta-se, Kotoko.