|Japanese name:||古河 早苗|
Sanae plays a larger role in After Story, often comes to Tomoya's aid when Nagisa is sick and needs to be accompanied, especially during Nagisa's pregnancy. Before being a baker at the Furukawa Bakery, she was a junior-high teacher, and had to quit her job due to Nagisa's health. Sanae is the mastermind behind Tomoya and Ushio's trip to the flower cape, in hope for them to reconcile. She knows Shino, Tomoya's grandmother in his father's side, although it is never revealed how they met.