The novel tells the story of Shen Xinci and Lu Xingxing, who had a two-way secret love for four years in college but could never express it. After entering the freshman year, the two became roommates. Lu Xingxing fell in love with Shen Xinci when he first saw him, and Shen Xinci also silently paid attention to this shy boy. In the past four years, Shen Xingci took care of Lu Xingxing with countless "handy" details - passing water, giving umbrellas, picking coriander, and hand warmers; Lu Xingxing collected all his heartbeats in an iron box and wrote them in his diary. They watched cherry blossoms together, made snowmen, celebrated New Year's Eve, and squeezed into the same bed to keep warm. They knew each other well, but no one dared to speak first. On the day of graduation, the station was crowded with people. The two turned to say goodbye. Shen Xinci whispered a confession that was hidden by the wind, and Lu Xingxing left a belated response in his diary. In the end, they went their separate ways, and their youthful love remained on that midsummer campus forever, becoming a tender and regretful memory.
Intention: We have been sleeping together for four years. You never said you liked me, but I know you like me.