Once I woke up, I didn't know if it was a dream. In a war-torn era, falling in love with you may be my disaster. He looked at her, persistent and determined: "We will be together." She burst into tears: "What do you want me to do, what should I do?" A love that is destined not to be blessed by the world, should I stick to it or give up? This is a story about the love growth of a daughter of the Republic of China and a Japanese military officer. From mutual defense and testing to mutual sympathy, love is never deliberate but a momentary heartbeat.