One day, with Christmas near, a message and a fir tree sent by Itsuka's mother arrive. Remembering back to the broken promises from when she was little, Itsuka is afraid to make another promise with her mother. But Nagomu's words give her a push, and she tells her mother that she'll be waiting.
Yuzu yokan causes Nagomu to remember a conversation he had with his grandfather.
Then it must have reached the end of 
its life. It's been thirty years, after all.
إذاً لا بدّ أنّ عمرها قد انتهى. فقد مضى ثلاثون عاماً
Dann kann man nix machen.
Es hat immerhin 30 Jahre gehalten.
Pues no daba para más.
Nos duró 30 años.
Entonces ya no daría más de sí.
Ha durado treinta años.
Ça doit être l’usure, alors.
Elle a 30 ans, après tout.
E va bene, il tempo suo l'ha fatto,
ha pur sempre trent'anni.
Então deve ter chegado no fim da sua vida útil mesmo.
Bem, esse negócio já tem trinta anos.
Значит, отработала своё.
Тридцать лет как-никак.