Xu Nuo from Mingde Middle School is a timid coward in the eyes of everyone. He can only hide when things happen and even speaks softly. Fortunately, Lin Wanxing and Xia Hehe are always with him. Until the domineering and dazzling Qin Yuchen appeared, he broke Xu Nuo's timid world and protected her every time - lecturing for her, fighting off ridicule for her in the library, guarding her during basketball games, sending her home after night study, and even gave her all his exclusive tenderness, saying to her "I am here, you don't have to be afraid", lending her the courage to face the world. Xu Nuo slowly fell in love under his protection, and quietly learned to be brave. The ambiguity between the two quietly heated up in the fragrance of cinnamon and the sunset. Qin Yuchen's words "I seem to like you a little bit" became the sweetest light in Xu Nuo's youth.
But this tenderness could not match the reality. Due to family arrangements, Qin Yuchen had to transfer school and go abroad. The sudden separation shattered Xu Nuo's joy. For the first time, she mustered up the courage to stay, but she only waited for his involuntary response. Qin Yuchen left with regrets. The promise that was not fulfilled in time and the bear bracelet that was not given became the regrets of their youth. And Xu Nuo, with the little bit of courage he borrowed, slowly learned to gather courage and face everything head-on under the care of his best friend and the hero's brother. He grew up from a coward hiding in the corner to a gentle but determined girl. However, the domineering young man who once protected her and said he would lend her a lifetime of courage finally disappeared in the wind of youth.
Concept: The heartbeat of a coward is a war that no one knows about.