With her dislike of Yuzu and Mei's relationship, Matsuri uses the secret photo she took at the shopping mall to blackmail Mei into fooling around with text-pal on Christmas. Meanwhile, Yuzu knows nothing of this and struggles to bake a cake for her first Christmas together with Mei. While her excitement builds, Mei comes home and breaks the news that she won't be able to join their Christmas Party due to student council work...
I was practicing baking 
cakes up until yesterday.
Bis gestern hab ich mich
am Kuchenbacken probiert.
Estuve practicando
cómo hornear pasteles hasta ayer.
Ayer pasé el día haciendo tartas.
Hier, j’ai fait plein de gâteaux
pour m’entraîner,
Sai, ieri ho passato la giornata intera 
a tentare di preparare una torta,
Eu estava treinando até ontem
para fazer bolos.
Я вчера весь день училась печь торты.