From a proposal in a solar-powered garden, Lin Yusen and Nie Xiguang stand by each other through career highs and family challenges. He is a steady, devoted surgeon, and she is a bold, resilient solar power entrepreneur. He turns ten years of secret love into a lifetime together, while her stubbornness and love heal the fractures in her family. At their wedding, her father watches tearfully from his hospital room; beneath the Maldivian stars on their honeymoon, they make their vows. When their daughter, Xiaoxingxing, is born, this doting father learns to feel jealous of their second child, a boy, and clumsily grows into parenthood through the everyday challenges of raising children. From 2018 to 2028, their love grows ever stronger amid the routines of daily life. Like the blazing sun, and like the sun itself, their sweet life together shines with the truest light of real life.