Hey, I’m looking for a one shot about an ex-couple in highschool. I cant remember much about it, but I remember at the end it was (I think) a sport day in school, and the guy confessed to the girl during a ceremony by writing her name on the back of his shirt. His whole group did this, and wrote one thing they love on their shirts, and he wrote her name.
Another scene I remember is that at the beginning she was near a vending machine and notice him coming her way, and she notices that his favorite drink was missing from the machine.

I really appreciate any help!