How long is a person's life?
Zhao Tingqing's lasted only seventeen years, and Lin Yueyue's was hardly long either: she lived just ten years longer than he did.
Lin Yueyue never understood why Zhao Tingqing had to prove his love for her by dying. It was only after she got a second chance that she understood: loving you means I can give you my life.
In this fortunate new life, she doesn't want Zhao Tingqing's life to end at seventeen. She wants him to live a long, long time and grow old by her side.
Put simply, this is a youthful romance between a proud fake underachiever and a timid real top student. They grow together, becoming warm, healing presences who can each be the other's shelter.
The heroine isn't a naive, sweet girl. She only shows this adorably silly and timid side around the hero.