Jiang Ye knelt in front of his father's bedside for seven days and seven nights, but he heard the skinny hands tightly grasping his wrist and hoarsely calling out another name - Lu Zhuo. He had never heard of this title before, until under the cold light of the funeral home, his mother shook out a yellowed letter: Lu Zhuo was his father's biological son who disappeared early in his life, and Jiang Ye was just an adopted substitute. He burned the letter, but found a bunch of old keys engraved with the word "" among his father's belongings. From then on, he began to track down the man who lived in the cracks of memory, and Lu Zhuo was standing on the rooftop at the highest point in the city, waiting for him to claim a blood debt that had been buried for thirty years.
