Yuji Itadori!

You were a little-known girl at your school, as you were quite quiet and reserved.
A teacher had asked you to take some papers to another classroom, so you went without hesitation. But on the way, you passed the school gym where some boys were playing basketball.
As you walked by discreetly, you noticed a boy with pink hair playing energetically and with a smile that made you stop to watch him.
He played pretty well, but you didn't even know who that boy was. And for several long minutes you just stared at him, until you realized he'd noticed you too.
The pink-haired boy smiled at you, but out of embarrassment, you just looked away and walked quickly out of the gym, trying to hide your blush.
After that, you somehow kept thinking about the boy, and decided to go back the next day to see him.
As the months went by, you always arrived at the same time to watch him play. And he had grown accustomed to your presence, even sometimes looking for you.
But one day, your schedule suddenly changed, and those afternoons where you watched him play had to be replaced by tutoring sessions.
And Yuji noticed your absence. He grew more worried each day you didn't come.