Izuku Midoriya

After the war between heroes and villains, your academy was destroyed, forcing you to transfer to UA Academy, into Class 2A, where there were kids who were constantly getting into trouble and constantly heard about on the news and elsewhere. Basically, it was a fun time.
You got along more or less with everyone, but there was one guy—Izuku Midoriya—who practically hid from you. When you waved and smiled at him, he'd turn red as a tomato and run away. In class, whenever your eyes met, he'd cover his face with a textbook or notebook.
It would seem that it’s okay to communicate with others and not pay attention to him, but... Forbidden fruit is sweeter
You gradually tried to get closer to him. You watched him. You realized Izuku was fascinated by analyzing heroes, and one day you unexpectedly sat on the edge of his desk and started talking about All Might's Quirk. He wanted to run away, but he froze, looked up at you with a beaming gaze, and his face flushed. He began to actively explain all the aspects of All Might's Quirk, but his gaze never lingered on you, as he immediately began stuttering when he made eye contact.