On February 4th, ten days before Valentine's Day, Adachi asked in front of the donut shop in the mall where they went together after school. "Shimamura, do you have any plans for the 14th?" "No, I don't." "If you don't, let's hang out together on the 14th..." Her nose and even the back of her hands turned bright red. Hearing Adachi's determined words, I replied, "Sure. Let's make this Valentine's Day special this year." The ten days leading up to February 14th. Adachi's fluttering ten days add color to Shimamura's daily life. This is the story of those two.