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 I'm not alone on my 
birthday, that's enough."
"إن لم أكن بمفردي في عيد ميلادي، فهذا يكفي"
„Am Geburtstag will ich
nicht allein sein.
"Me conformo con no celebrar solo".
"Mientras no celebre
mi cumpleaños solo, me vale".
« Un anniversaire,
ça se fête à plusieurs. »
che per il compleanno 
gli basta non essere da solo.
"Pra mim já tá bom o bastante se eu não
ficar sozinho no meu aniversário."