Everyday school life + no romantic pairing + unrequited love
Su Mengyao meets someone in high school and falls in love at first sight. Unfortunately, he doesn't like her. I met you in the best years of my life, but you never returned my feelings.
Note: Slow-paced, tragic romance. The heroine is very ordinary by design! The story mainly focuses on the little details of everyday high school life. If that's not for you, read with caution.