After his first day at school, Yuichi is able to stir the memories of Ayu, who happily recalls a promise he made to her years before. But the strange girl who later attacks Yuichi doesn’t seem happy at all.

Ayu’s disappearance prompts Yuichi to search even more diligently for her missing item. Nayuki goes out of her way to cheer up her heartsick housemate, but she my regret requesting strawberry cake.

Grief-stricken Nayuki locks herself in her room and refuses to let anyone enter. Tragic memories concerning Ayu wash over Yuichi, causing him to wander into the woods during a snowstorm.