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.
You didn't cut your nails, 
you filed them, right?
لم تقصّي أظفرك، كنتِ تبردينها، صحيح؟
Du hast mir doch beigebracht,
die Nägel zu feilen anstatt zu schneiden.
No te cortas las uñas,
te las limas, ¿verdad?
No te cortas las uñas,
te las limas, ¿verdad?
T’utilisais pas une pince,
mais une lime à ongles, pas vrai ?
Tu le unghie le limavi invece di tagliartele, no?
Você não cortava as unhas,
você só lixava, não era?
Ты же подпиливаешь ногти,
а не состригаешь полностью.