The night breeze eavesdropped on Xia Zhi's secret love and blew her thoughts into Xu Yan's ears. One is quiet and reserved, the other is cold and distant. They share secrets in the sophomore classroom, but in reality they are separated by an invisible wall. Best friend Zhao Xiaoman quietly assisted, literary and art committee member Lin Ruoshi secretly blocked it, and class teacher Lao Suntou quietly added fuel to the fire. When the diary is opened by the night breeze, when the secret love finally comes out, can Xia Zhi wait for Xu Yan's answer? The worries in this youth will eventually rise with the wind and depend on the mood.