Ten years ago, she was an introverted and sensitive girl from the literary club, who had a crush on Shen Yan, a talented senior who attracted the attention of the whole school. She wrote a love letter, but failed to send it due to an accident. Shen Yan also suddenly dropped out of school on the eve of graduation, and there was no news. Ten years later, return to the old place. In the mezzanine of the renovated old library, she accidentally discovered a rusty iron box, which actually contained her unsent love letter.
