Planning Department 3 was once the most mysterious and glorious department within Gaofa Power Company, but in the past three years, its status has plummeted due to repeated unreliable plans. However, the people in Planning Department 3 interpret the life of "ordinary strugglers" in their own way. Whether it is Li Tianran, a "black hole" in the workplace, or Fan Sisi, a girl who pursues inner peace and indifference, or Wu Yimei, who is cold-faced and warm-hearted, or Bai Mashuai, who chooses to struggle instead of being a dandy, they have their own dreams, their own persistence, and deep feelings for Planning Department 3. They make progress with their colleagues and grow with the company. Although they are facing the deliberate nitpicking of the vice president and the competition of Planning Department 1, they have successfully resolved the crisis again and again with their efforts, bringing Planning Department 3 back to its peak, and allowing themselves to grow in their workplace life with tears and laughter, and gain precious love and friendship.