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 you're lying, I'll make 
you swallow a thousand yokan.
إذا كذبت، سأجعلك تبتلع ألف يوكان
Wenn du lügst, stopfe ich
dir Tausend Yuzu-Yokans rein.
Si me mientes,
te haré tragar mil yokanes.
Si me mientes,
te haré tragar mil yokanes.
Si tu mens,
je te fais manger 1 000 yôkan.
Se dici le bugie, 
ti faccio ingoiare mille yokan.
Se você estiver mentindo,
vai ter que engolir mil youkans.
Нарушите обещание — скормлю
вам тысячу ёканов.