Nan'ao Island is a small town surrounded by the blue sea. The sea breeze hides the smoke and unresolved concerns of generations of fishermen. Thirty-year-old Cheng Feng returned exhausted and traumatized - the debt from failed urban entrepreneurship and the shadow of betrayal by his best friend made him a deserter who was considered "unsatisfactory" by the people in his hometown. He lives in an abandoned old fishing house on the seaside, trying to escape reality amidst the sound of the waves, but is accidentally involved in the disputes in the small town: his father's fishing boat is facing elimination, his childhood friend's fishing port renovation plan has caused controversy, and the appearance of the mysterious female photographer Lin Wan breaks his isolation. In the confrontation with the sea and the entanglement with the past, Cheng Feng gradually discovered that the family ties, hometown and original aspirations that he had escaped from were the antidote to the pain. He regained the fishing skills taught by his father, participated in the protection of fishing ports, and solved the years of estrangement with his father. During the ebb and flow, he rediscovered the direction of life and the courage to love. This is a story about return and reconciliation. In the sea breeze and sound of waves on Nan'ao Island, you can see the glimmer of every ordinary person's perseverance in difficulties.