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.
They've made me help with 
it since I was little.
جعلوني أساعد في ذلك منذ صِغري
Dabei musste ich auch
schon helfen, als ich klein war.
Llevo haciéndolo desde que era niño.
Llevo haciéndolo desde que era niño.
J’étais forcé de le faire,
quand j’étais petit.
Da piccolo mi facevano aiutare spesso a usarla.
Ah, mas é só porque eu tinha que
ajudar com isso desde que era pequeno.
Я в детстве постоянно этим занимался.