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.
It's when the sun's power is
 at its very weakest,
،إنّه عندما تكون قوّة الشّمس في أضعف حالاتها
„Die langersehnte
Frühlingssonne“.
Notre soleil,
qui est au plus bas de sa forme,
Questo perché la luce del sole
si indebolisce temporaneamente
Quando a luz do sol tá
no seu estado mais fraco,
В этот день солнце светит
слабее всего,