Milk Cake in the Reflection鏡越しのミルクケーキ (Japanese); Kagami-goshi no Milk Cake

Everyday a boy goes to a cafe to watch the girl he likes from afar. Using the reflection in the window, he orders the same things she orders and eats it the same way she eats it. Hoping to learn as much about her as he can, he works up the courage to confess.