Lu Yan, a 28-year-old technology upstart, became famous at a young age but was disheartened - his parents passed away and he was in debt. He sealed himself in a cold glass apartment and suffered from insomnia until three in the morning. Su Nian, a 26-year-old florist, broke into his world with a bouquet of sunflowers, and in the clumsiest and most sincere way, he knocked on the door of his heart that had been dusty for ten years. This is not a grand redemption, but a story about companionship: when the sun shines into the ice, melting starts from the subtleties. It turns out that the deepest healing is when someone is willing to accompany you from night to day.