Setting: Su Qingyuan, the 28-year-old CEO of a technology company, is calm and decisive, and is recognized as the "iceberg female boss" in the business world. Lin Yanzhou, a 15-year-old high school student, seems to be sunny and cheerful, but he has hidden a nine-year secret in his heart - when he was 6 years old, he was rescued by Su Qingyuan in a chaos. Her strength and gentleness were imprinted on his heart, and "marrying her" became his only goal in life. Nine years later, he broke into her world as an "intern" and melted her frozen heart little by little with his unique persistence and sincerity.