In the autumn of her nineteenth year, Shen Nian wandered onto the roof of the school's old teaching building and met a boy named Lu Yan. She slipped on the stairs and fell. When she woke up, the only thing she had forgotten was everything about him.
"I'm Lu Yan, your boyfriend." Standing by her hospital bed, the delinquent-looking school bully delivered the lie without batting an eye.
One is a sweet, well-behaved top student; the other is a rebellious heir to a wealthy family, fighting the world in his own way. A sudden bout of amnesia tangles two paths that should have run in parallel, binding their youth together from then on.
He brings her breakfast, saves her a seat, and keeps her company while she sleeps in the library. She takes notes for him, knits him a scarf, and makes him want to become a better person for the first time.
From a contractual relationship to genuine love, from their first meeting on the rooftop to wedding clothes and a wedding dress, they spend their entire youth turning that lie into a promise for life.
