Yang Miao has loved Cheng Xi for ten years. On the night she returns to China, she runs into him again but mistakenly thinks he hates her, so she leaves heartbroken. When she wakes up, she finds herself back in her first year of high school. She secretly vows not to fall for him this time, but in the end, she still falls hopelessly in love with him.
Cheng Xi notices that his new deskmate seems to hate him from the very first day of school. He decides to ignore it and focus on his formulas, never expecting that one day his attention will shift from those formulas to the little ray of sunshine named Yang Miao.
Love means that even if I could start over, I would still fall for you.