1976, Jiangnan water town. Su Yang was forced by her uncle to marry a widower. When she jumped into a river in despair, she was rescued by Xie Cheng, the cold-faced company commander who had returned from the army. "I'm marrying this girl." With one sentence, the whole village was in an uproar. He is seven years older than her, a tough guy who protects her as much as possible; she is as soft as cattails, soft on the outside and tough on the inside, using her wisdom to support a family for him. When military uniforms meet floral fabrics, a sweet military marriage with a seven-year age difference begins.