She protects the legacy of her deceased parents, who wanted to build the best house for living ordinary people. They are the only people each other can rely on when they collapse, but they stand on opposite sides of fate - she hates tearing down, he must build. On the ancient town development project, they changed from lovers to rivals. Until the night of heavy rain, when he rushed into the dilapidated house to get back the data left by her parents, the beams collapsed. He wasn't dead, he had a broken leg. The first thing I asked after waking up was whether Data was okay. Later, he proposed separation: "It's not that I don't love you, I love you so much that I don't know how to stand in front of you." A year later, he went to the mountains and made all his architectural works anonymous. She received a blue brick with the inscription: "I still love you. I just can't be with you anymore." She didn't go to him. Some people can only spend their entire lives saying goodbye.