Yao Kaixin is recognized as the "little sun" on campus. She is always full of energy, as if no gloom can fall on her.
In her first class at university, she met Yang Feng, the youngest tutor in the college. He was aloof and ascetic, with eyes like lake water in late winter. Everyone was kept away from him, but no one noticed that he was looking at her perfect mask in the dark. He looked at her from the moral high ground and looked down upon her. But when she bumped into him again and again with clumsy sincerity, the knife that had been tempered by hatred for twenty years had a gap for the first time. He spent half his life in darkness and disguise, suppressing his heartbeat deep in his heart.
Lin Ran, the "weak neighbor brother" that Yao Kaixin swore to protect, is a secretly super-rich second generation. In front of her, humans and animals are always harmless, and behind her, everyone who comes close to her is silently eliminated.
On the night of graduation, she confessed her love to Yang Feng under the influence of alcohol, but he fled in embarrassment. Lin Ran came and took her to the hotel. While drunk, she mistook him for Yang Feng... That night was the only time Lin Ran lost control. She had no idea.
When Yang Feng finally decided to accept this relationship, the truth tore everything apart. Before the collapse, Yao's mother died in a car accident. She fainted and was sent to the hospital. When she woke up, there was a pregnancy test report waiting for her. Misunderstandings became entangled, and the heartbroken Yao Kaixin followed him abroad. He planned to take away the child, but Lin Ran persuaded him to stop him. In the end, he gave birth to a child that was not planned by Lin Ran, but made him ecstatic.
Six years later, she returned to China with her husband and children. Waiting at the pick-up port, in addition to her old father, there was also her father's "other son" - the man she had loved her whole youth, but now she should call him "brother"...
