In order to make his daughter live a happier life, Lu Xiaohua works hard and is an out-and-out good man. In life, he is a competent single father who regards his daughter as his treasure. But precisely because of his gentle personality, he was squeezed by his immediate boss, who constantly increased his workload, deprived him of rest, and used him like a machine. At the same time, some colleagues also obstructed him for their own interests and tried to kill him by any means. In order to keep his job, he endured everything. Although I was tired of my current job, when I thought of my daughter, my fighting spirit was ignited again, and all my worries were forgotten. The arrangement of fate brought him to a turning point in his life, and his honest character enabled him to get help from noble people and gradually escape from the predicament. But it was this noble man who evoked the mysteries that had been buried in his heart for several years. The truth of some seemingly coincidental events was now revealed. Some of the mysteries were even related to the most important people in him. As time went by, these mysteries gradually came to light...