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.
If someone Itsuka hasn't told 
knew when her birthday was,
لو أنّ شخصاً لم تخبره إتسكا عَلمَ
،متى يكون يوم عيد ميلادها
Wenn Itsuka das herausfindet,
wäre sie wieder eingeschnappt.
Ça va la rebuter, si elle apprend
que je l’ai su par quelqu’un.
No, se l'interessata lo scoprisse,
poi si stranirebbe.
Tenho certeza que a Itsuka ia ficar
incomodada se alguém que ela