The Story of How I, a Loner, Got Talked to by My Outgoing Girlfriend, But She Was Also Introverted

Hakusei had grown to dislike interacting with others due to a discrepancy in perception between herself and those around her that she felt during elementary school. Her high school life was spent predictably in the library after school. She thought this was fine as it was, but one day, a classmate named Akitani Sora, who belonged to a cheerful friend group, speaks to her. At first, Hakusei found it annoying, but gradually she began to feel that the days she spent with Akitani weren't so bad. It's basically a story that lives up to the title.