Mikazuki to Nagareboshi  

Crescent Moon and Shooting Star, 三日月と流れ星

Mitsuki, a college freshman, has been thinking about the same person since she was 16 years old-an older divorced man named Asai Ryuusei who runs a coffee shop. To Mitsuki, Ryuusei holds great importance, but her romantic feelings for him are gradually fading.