A startling glimpse in the summer wind on the first day of the new year made Yang Jiajia quietly write the word "promise" all over her homework book and her youthful time. She is quiet and sensitive. She has encountered passionate and reckless love along the way, as well as gentle and restrained companionship, but her heart has never wavered in the slightest. She even chose to study medicine, just to become better step by step and get closer to the unreachable light in her heart. She always thought that this ten-year long admiration was just her one-man show from beginning to end.
She didn't know that that dazzling and cold young man actually had a heartbeat earlier than her. The way she lowered her head in panic in the corridor, with the tips of her ears turning red, had been silently remembered by him for many years, hidden in his unknown youth.
Ten years later, when her circle of friends reunited unexpectedly, she finally mustered up all her courage and rushed across 2,000 kilometers. From school uniforms to military uniforms, from one-way secret love to two-way love, he protects his home country and her life.
This two-way heartbeat, which has been delayed for many years, finally has the most tender and happy ending after waiting and perseverance.
